Kim test work chemistry gdz 9. Test work in chemistry, grade 9. Scheme of transformations for phosphorus compounds
Grade 9
Examination No. 1 on the topic "Metals"
Option 1
Compose reaction equations that characterize the chemical properties of metallic calcium. Reactions should be considered in the light of the theory of OVR and TED. Give the names and characteristics of the obtained substances.
Fe → FeSO4 → Fe(OH)2 → FeO → Fe
In the interaction of 5.4 g of Al with hydrochloric acid, 6.384 liters of hydrogen (n.o.) were obtained. What is the percentage of what is theoretically possible?
Give the chemical formulas of the following compounds: crystal soda, burnt magnesia, red iron ore.
Option 2
Write reaction equations that characterize the chemical properties of metallic lithium. Reactions should be considered in the light of the theory of OVR and TED. Give the names and characteristics of the obtained substances.
Write reaction equations for transitions:
Na →Na2O2 → Na2O → NaOH → Na3PO4
Determine the volume of hydrogen that can be obtained by interacting with water 5 g of Ca, if the hydrogen yield is 90% of the theoretically possible?
Give the chemical formulas of the following compounds:
Magnetic iron ore, iron pyrite, rock salt.
Examination No. 1 on the topic "Non-metals"
Option 1
Write reaction equations for transitions:
S → H2S → SO2 → SO3 → H2SO4 → H2
MnO2 + 4HCl = MnCl2 + Cl2 + H2O
Give the chemical formulas of the following compounds: ammonium nitrate, lead luster, fluorite.
30 ml of ammonia were dissolved in 735 mg of a 20% sulfuric acid solution. Calculate the mass of salt formed.
Option 2
Write reaction equations for transitions:
C → CO2 → CaCO3 → Ca(HCO3)2 → CaCl2
Consider one reaction in the light of TED.
Equalize the OVR using the electronic balance method:
HNO3 (dil.) + Mg = Mg(NO3)2 + N2O + H2O
Give the chemical formulas of the following compounds: laughing gas, liquid glass, potassium nitrate.
In 400 g of a 25% potassium hydroxide solution, 45 liters of carbon dioxide were dissolved. Calculate the mass of salt formed.
Final test in chemistry in grade 9
Option 1
Ca → CaO → Ca(OH)2 → Ca(NO3)2 → CaSO4.
N2 → NH3 →NO2 →HNO3 →KNO3 →O2
3. Describe the chemical properties of carboxylic acids.
Option 2 Grade 9
1. Carry out a chain of transformations. Give the names of the resulting substances.
Fe → FeCl2 → Fe(OH)2 → FeO → FeSO4.
For the first reaction, write the molecular, full and reduced ionic equations.
2. Carry out a chain of transformations. Give the names of the resulting substances.
SiO2 → Si →K2SiO3 →KNO3 →O2 →SiO2
Equalize any redox reaction using the electronic balance method. For any ion exchange reaction, compose molecular, complete and abbreviated ionic equations.
3. Describe the chemical properties of ethylene.
Work evaluation system. (40 minutes)
0 - 6 points - "2" 7 - 9 points - "3"
10 - 11 points - "4" 12 - 13 points - "5"
Test No. 1
Introduction to the 9th grade course
OPTION 1
Part 1
A 1. A chemical element that has an atomic structure scheme + 14) 2) 8) 4 in the Periodic system occupies the position:
1) 4th period, main subgroup III group
2) 2nd period, main subgroup IV group
3) 3rd period, main subgroup IV group
4) 3rd period, main subgroup II group
A 2. The element with the most pronounced non-metallic properties:
1) silicon 3) sulfur
2) magnesium 4) phosphorus
A 3. The oxide of the element E with a nuclear charge of + 16 corresponds to the general formula:
1) E 2 O 3) EO 2
2) EO 4) EO 3
A 4. The scheme of transformations Cu +2 → Cu 0 corresponds to the chemical equation:
1) CuO + H 2 = Cu + H 2 O 3) CuO + 2HCl = CuCl 2 + H 2 O
2) Cu + Cl 2 = CuCl 2 4) 2Cu + O 2 = 2CuO
A 5. The element E in the scheme of transformations E → EO 2 → H 2 EO 3 is:
1) nitrogen 3) aluminum
2) magnesium 4) carbon
A 6.
A.
hydroxides are enhanced.
B. In the period with an increase in the ordinal number of the element, the main properties
hydroxides weaken.
IN 1.
A) Ca 1) ... 4s 2
B) Al 2) … 3s 1
C) N 3) … 2s 2 2p 3
D) N a 4) … 3s 2 3p 1
5) …4s 2 4p 2
6) … 2s 2 2p 6
IN 2. React with sulfuric acid solution:
1) copper 4) magnesium
2) copper oxide (II) 5) barium chloride
3) sodium hydroxide 6) sulfur oxide (IV)
Part 3
From 1
BaO → Ba (OH) 2 → BaCO 3 → BaCl 2
Test No. 1
Introduction to the 9th grade course
OPTION -2
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. A chemical element that has an atom structure scheme + 8) 2) 6, in the Periodic system occupies the position:
1) 2nd period, main subgroup VII group
2) 2nd period, main subgroup VI group
3) 3rd period, main subgroup VI group
4) 2nd period, main subgroup II group
A 2.
1) potassium 3) sodium
2) lithium 4) rubidium
A 3. The oxide of the element E with a nuclear charge of + 11 corresponds to the general formula:
1) E 2 O 3) EO 2
2) EO 4) EO 3
A 4. The scheme of transformations C 0 → C +4 corresponds to the chemical equation:
1) CO 2 + CaO \u003d C aCO 3 3) C + 2CuO \u003d 2Cu + CO 2
2) CO 2 + H 2 O \u003d H 2 CO 3 4) 2C + O 2 \u003d 2CO
A 5. Element E in the scheme of transformations E → E 2 O 5 → H 3 EO 4 is:
1) nitrogen 3) carbon
2) sulfur 4) phosphorus
A 6. Are the following statements correct?
A.
hydroxides are enhanced.
B. In the group with an increase in the ordinal number of the element, acidic properties
hydroxides weaken.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the atom and the structure of the external energy level:
Particle: Electron distribution:
A) Mg 1) ... 3s 2 3p 5
B) K 2) … 3s 2
C) Cl 3) ... 4s 1
D) S 4) … 4s 2 4p 2
5) … 2s 2 2p 6
6) … 3s 2 3p 4
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2
1) copper sulfate (II) 4) nitric acid
2) copper oxide (II) 5) magnesium
3) potassium hydroxide 6) carbon monoxide (IV)
Part 3
Write down the task number and the full solution
From 1. According to the transformation scheme, make up the reaction equations in molecular form. For transformation No. 3, write down the full and abbreviated ionic equations.
SO 2 → SO 3 → H 2 SO 4 → Na 2 SO 4
Test No. 1
Introduction to the 9th grade course
OPTION -3
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. A chemical element having an atomic structure scheme + 12) 2) 8) 2 in the Periodic system occupies the position:
1) 2nd period, main subgroup II group
2) 2nd period, main subgroup VIII group
3) 3rd period, main subgroup II group
4) 4th period, main subgroup II group
A 2. The element with the most pronounced non-metallic properties:
1) germanium 3) tin
2) silicon 4) carbon
A 3. The oxide of the element E with a nuclear charge of + 15 corresponds to the general formula:
1) EO 3) E 2 O 5
2) EO 2 4) E 2 O 7
A 4. The scheme of transformations S +4 → S +6 corresponds to the chemical equation:
1) SO 2 + CaO = CaSO 3 3) H 2 SO 4 + 2KOH = K 2 SO 4 + 2H 2 O
2) 2SO 2 + O 2 = 2SO 3 4) Fe + S = FeS
A 5. The element E in the scheme of transformations E → EO → E (OH) 2 is:
1) aluminum 3) iron
2) barium 4) copper
A 6. Are the following statements correct?
A. In a period with an increase in the ordinal number of the element, the radius of the atom increases.
B. In a period with an increase in the ordinal number of the element, the radius of the atom does not change.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the atom and the structure of the external energy level:
Particle: Electron distribution:
A) C 1) ... 1s 1
B) Li 2) … 2s 1
B) O 3) … 2s 2 2p 4
D) Si 4) … 3s 2 3p 2
5) … 4s 2 4p 4
6) … 2s 2 2p 2
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. React with hydrochloric acid solution:
1) zinc 4) sodium carbonate
2) magnesium hydroxide 5) barium chloride
3) sodium oxide 6) sulfur oxide (VI)
Part 3
Write down the task number and the full solution
From 1. According to the transformation scheme, make up the reaction equations in molecular form. For transformation No. 3, write down the full and abbreviated ionic equations.
C → CO 2 → Na 2 CO 3 → CaCO 3
Test No. 1
Introduction to the 9th grade course
OPTION -4
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. A chemical element that has an atomic structure scheme + 17) 2) 8) 7, in the Periodic system occupies the position:
1) 2nd period, main subgroup III group
2) 2nd period, main subgroup VII group
3) 3rd period, main subgroup V group
4) 3rd period, main subgroup VII group
A 2. The element with the most pronounced metallic properties:
1) aluminum 3) magnesium
2) silicon 4) sodium
A 3. The oxide of the element E with a nuclear charge of + 17 corresponds to the general formula:
1) EO 3) E 2 O 5
2) EO 2 4) E 2 O 7
A 4. The scheme of transformations N -3 → N +2 corresponds to the chemical equation:
1) NH 3 + HCl = NH 4 Cl 3) 4NH 3 + 3O 2 = 2N 2 + 6H 2 O
2) N 2 + 3H 2 = 2NH 3 4) 4NH 3 + 5O 2 = 4NO + 6H 2 O
A 5. Element E in the scheme of transformations E → E 2 O → EON is:
1) barium 3) silver
2) lithium 4) carbon
A 6. Are the following statements correct?
A. In a group, with an increase in the ordinal number of the element, the radius of the atom increases.
B. In a group, with an increase in the ordinal number of the element, the radius of the atom decreases.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the atom and the structure of the external energy level:
Particle: Electron distribution:
A) P 1) ... 4s 2
B) F 2) … 5s 1
C) Ar 3) … 3s 2 3p 6
D) Rb 4) … 3s 2 3p 3
5) … 4s 2 4p 2
6) … 2s 2 2p 5
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. React with calcium hydroxide solution:
1) sulfuric acid 4) copper
2) carbon monoxide (IV) 5) sodium chloride
3) sodium carbonate 6) potassium oxide
Part 3
Write down the task number and the full solution
From 1. According to the transformation scheme, make up the reaction equations in molecular form. For transformation No. 3, write down the full and abbreviated ionic equations.
Li → Li 2 O → LiOH → Li 2 SO 4
Test No. 2
METALS
OPTION 1.
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. The electronic formula of the magnesium atom:
1) 1s 2 2s 2 3) 1s 2 2s 3
2) 1s 2 2s 2 2p 1 4) 1s 2 2s 2 2p 6 3s 2
A 2. The electronic formula of the external energy level of atoms of the elements of the main subgroup of group II PS:
1) n s 1 2) n s 2 3) n s 2 n p 1 4) n s 2 n p 2
A 3.
1) beryllium 3) magnesium
2) calcium 4) strontium
A 4.
1) potassium 3) calcium
2) scandium 4) magnesium
A 5. Does not react with dilute sulfuric acid:
1) iron 3) platinum
2) nickel 4) zinc
A 6. Are the following statements about alkali metals correct?
A. In all compounds, they have an oxidation state of + 1.
B. With non-metals, they form compounds with ionic bonds.
1) only A is true
2) only B is true
3) both statements are correct
4) both statements are wrong
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the element and the formula of its highest oxide.
ELEMENT HIGHER OXIDE
A) Cs 1) EO 3
B) Al 2) E 2 O 5
C) Ca 3) E 2 O
D) K 4) E 2 O 3
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. Substances that interact with zinc:
1 HCl 4) CaO
3) H 2 SO 4 6) CO 2
From 1. Name all substances.
Cu(OH) 2 CuO CuSO 4 Cu(OH) 2 Cu(NO 3) 2
Test No. 2
METALS
OPTION - 2
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. Electronic formula of the lithium atom:
1) 1s 2 2s 2 3) 1s 2 2s 1
2) 1s 2 2s 2 2p 1 4) 1s 2 2s 2 2p 6 3s 1
A 2. The electronic formula of the external energy level of alkali metal atoms:
1) n s 1 2) n s 2 3) n s 2 n p 1 4) n s 2 n p 2
A 3. A simple substance with the most pronounced metallic properties:
1) aluminum 3) gallium
2) boron 4) indium
A 4. Most vigorously interacts with water:
1) barium 3) magnesium
2) calcium 4) strontium
A 5.
1) iron 3) platinum
2) nickel 4) zinc
A 6. Are the following statements correct?
A. Aluminum hydroxide interacts with sodium hydroxide
B. Aluminum hydroxide reacts with sulfuric acid
1) only A is true
2) only B is true
3) both statements are correct
4) Both statements are wrong.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the formula of hydroxide and the formula of the corresponding oxide:
FORMULA FORMULA
HYDROXIDE OXIDE
A) EON 1) Al 2 O 3
B) E (OH) 3 2) Na 2 O
C) H 3 EO 3 3) MgO
D) E(OH) 2 4) NO
5) CO
6) SO3
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. Substances that interact with iron:
3) SiO 2 6) CuCl 2
Write down the task number and give a complete answer.
From 1. Name all substances.
Zn ZnO ZnCl 2 Zn(OH) 2 ZnO
Test No. 2
METALS
OPTION - 3
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. The electronic formula of the external energy level of atoms of the elements of the main subgroup of III group PS:
1) ns 1 2) ns 2 3) ns 2 np 1 4) ns 2 np 2
A 2. A simple substance with the most pronounced metallic properties:
1) aluminum 3) magnesium
2) silicon 4) sodium
A 3. The magnesium atom differs from the magnesium ion:
1) nuclear charge 3) number of protons
2) the number of neutrons 4) the number of electrons
A 4. Most vigorously interacts with water:
1) potassium 3) lithium
2) sodium 4) rubidium
A 5. Does not interact with concentrated sulfuric acid:
1) iron 3) copper
2) nickel 4) zinc
A 6. Are the following statements correct?
A. The radius of the atoms of the elements of the 2nd period does not change with an increase in the charge of the nucleus.
B. The radius of the atoms of the elements of the 2nd period increases with an increase in the charge of the nucleus.
1) only A is true
2) only B is true
3) both statements are correct
4) Both statements are wrong.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1.
ELEMENT ELECTRONIC FORMULA
A) Na 1) 1s 2 2s 2 2p 6 3 s 2 3 p 1
B) Ca 2) 1s 2 2s 2 2p 6 3 s 1
C) K 3) 1s 2 2s 2 2p 6 3 s 2 3 p 6 4 s 1
D) Al 4) 1s 2 2s 2 2p 7
5) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2
6) 1s 2 2s 2 2p 6 3 s 2 3 p 3
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. Substances that interact with calcium:
1) CO 2 4) H 2 O
2) H 2 5) O 2
3) HCl 6) NaOH
Write down the task number and give a complete answer.
From 1. According to the transformation scheme, make up the reaction equations in molecular form. For transformation No. 3, write down the full and abbreviated ionic equations. Name all substances.
Fe (OH) 3 Fe2O3 FeCl3 Fe (OH) 3 Fe2O3
Test No. 2
METALS
OPTION -4
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. The electronic formula of the external energy level of alkaline earth metal atoms:
1) ns 1 2) ns 2 3) ns 2 np 1 4) ns 2 np 2
A 2. A simple substance with the most pronounced metallic properties:
1) potassium 3) lithium
2) sodium 4) rubidium
A 3. The sodium atom and ion are different:
1) nuclear charge 3) particle radius
2) the number of neutrons 4) the number of protons
A 4. Most vigorously interacts with water:
1) aluminum 3) potassium
2) calcium 4) magnesium
A 5. Does not interact with hydrochloric acid:
1) iron 3) copper
2) calcium 4) zinc
A 6. Are the following statements correct?
A. The radius of the atoms of the elements of the main subgroup does not change with increasing nuclear charge.
B. The radius of the atoms of the elements of the main subgroup increases with the increase in the charge of the nucleus.
1) only A is true
2) only B is true
3) both statements are correct
4) Both statements are wrong.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the element and its corresponding electronic formula.
ELEMENT ELECTRONIC FORMULA
A) Mg 1) 1s 2 2s 2 2p 6 3 s 2 3 p 6 4 s 2 3d 6
B) Li 2) 1s 2 2s 2 2p 6 3 s 2
C) Fe 3) 1s 2 2s 2 2p 6 3s 2 3 p 6 4 s 1
D) Zn 4) 1s 2 2s 1
5) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10
6) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. Substances that interact with magnesium:
1) S 4) O 2
3) H 2 SO 6) Cu (OH) 2
Write down the task number and give a complete answer.
From 1. According to the transformation scheme, make up the reaction equations in molecular form. Consider transformation No. 1 from the point of view of OVR. Name all substances.
Ca CaO Ca(OH)2 CaCO3 CaO
Test No. 3
NON-METALS
OPTION 1
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. The formulas of the higher oxide and volatile hydrogen compound of the element E with the electronic formula of the atom 1s 2 2s 2 2p 3:
1) EO 2 and EN 4 3) EO Z and H 2 E.
A 2.
1) S e - Te - O - S 3) O - S - S e - Te
2) Te - S e - S - O 4) S e - Te - S - O
A 3. The transformation scheme P -3 → P +5 corresponds to the chemical equation:
1) 4P + 5O 2 = 2P 2 O 5 3) 4P + 3O 2 = 2P 2 O 3
2) 3Mg + 2P \u003d Mg 3 P 2 4) 2РН 3 + 4O 2 \u003d P 2 O 5 + 3H 2 O
A 4. Carbon monoxide (IV) does not interact with a substance whose formula is:
1) Ca (OH) 2 2) SO 2 3) H 2 O 4) Ba (OH) 2
A 5. The CO 3 2- ion can be detected using a solution containing:
1) ammonium cation. 3) hydroxide ion.
2) hydrogen cation 4) sodium cation.
A 6. Are the following statements correct?
A. In the main subgroup, the oxidizing properties of atoms of elements with
B. In the main subgroup, the oxidizing properties of the atoms of elements weaken with increasing serial number.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1.
PARTICLE ELECTRONIC FORMULA
A) S -2 1) 1s 2 2s 2 2p 2.
B) C 2) ls 2 2s 2 2p 6 3s 2 3p 6
B) P 3) 1s 2 2s 2 2p 6 3s 2 3p 4
D) N +5 4) 1s 2 2s 2 2p 6 3s 2 3p 3
5) ls 2 2s 2 2p 6 3s 2
The answer to task B 2 is a sequence of numbers in ascending order.
B 2 . The simple substance sulfur interacts with substances:
1) O 2 4) KOH
3) H 2 O 6) H 2
AT 3. The mass fraction of oxygen (in%) in sulfuric acid is _______ (write down the number, to the nearest tenth)
Part 3
Write down the task number and the full solution
C 1 . Using the reaction equation N 2 + O 2 \u003d 2NO, calculate the volumes of the starting materials to obtain 1 mol of nitric oxide gas (I I).
Test No. 3
NON-METALS
OPTION -2
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. The formulas of the higher oxide and volatile hydrogen compound of the element E with the electronic formula of the atom 1s 2 2s 2 2p 2:
A 2.
1) F - Cl - Br - I 3) Br - I - F - Cl
2) I - Br - Cl - F 4) Cl - F - I - Br
A 3. The transformation scheme N +2 → N +4 corresponds to the chemical equation:
1) N 2 + 3Mg \u003d Mg 3 N 2 3) N 2 + O 2 \u003d 2NO
2) N 2 + 3H 2 = 2NH 3 4) 2NO + O 2 = 2NO 2
A 4. Sulfur oxide (VI) does not interact with a substance whose formula is:
1) CO 2 2) H 2 O 3) KOH 4) MgO
A 5. The SiO 3 2- ion can be detected using a solution containing a cation:
1) barium 3) calcium
2) hydrogen 4) silver
A 6. Are the following statements correct?
A. In the period, the oxidizing properties of the atoms of the elements increase with an increase in the serial number.
B. In the period, the oxidizing properties of the atoms of the elements weaken with an increase in the serial number.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1.
PARTICLE ELECTRONIC FORMULA
A) C +2 1) 1s 2 2s 2
B) Cl - 2) ls 2 2s 2 2p 6 3s 2 3p 6
C) Si 3) 1s 2 2s 2 2p 6 3s 2 3p 5
D) N 4) 1s 2 2s 2 2p 6 3s 2 3p 2
5) ls 2 2s 2 2p 6
6) 1s 2 2s 2 2p 3
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. Carbon interacts with substances:
1) Cu O 4) O 2
2) SO 2 5) H 2
3) Ca 6) KOH
The answer to task B 3 is a number. Write this number on the answer sheet without specifying units of measure.
AT 3. The mass fraction of oxygen (in%) in nitric acid is _______ (write down the number, to the nearest tenth)
Part 3
Write down the task number and the full solution
From 1. According to the reaction equation 2СО + O 2 = 2СO 2, calculate the volumes of starting materials (n.o.) to obtain 1.5 mol of carbon monoxide (IV) gas.
Test No. 3
NON-METALS
OPTION -3
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. Formulas of the higher oxide and volatile hydrogen compound of the element E with the electronic formula of the atom 1s 2 2s 2 2p 6 3s 2 3p 4.
1) EO 2 and EN 4 3) EO 3 and H 2 E
2) E 2 O 5 and EN 3 4) E 2 O 7 and NE
A 2. The ability of atoms to accept electrons decreases in the series:
1) F - O - N - C 3) N - F - O - C
2) C - N - O - F 4) O - N - F - C
A 3. The transformation scheme S -2 → S +4 corresponds to the chemical equation:
1) SO 2 + H 2 O \u003d H 2 SO 3 3) 2SO 2 + O 2 \u003d 2SO 3
2) H 2 + S \u003d H 2 S 4) 2H 2 S + 3O 2 \u003d 2SO 2 + 2H 2 O
A 4. Ammonia interacts with a substance whose formula is:
1) HCl 2) NaOH. 3) SiO 2 4) N 2
A 5. The PO 4 3- ion can be detected using a solution containing a cation:
1) barium 3) sodium
2) hydrogen 4) silver
A 6. Are the following statements correct?
A. In the period with an increase in the ordinal number of the element, the acidic properties of oxides increase.
B. In the period with an increase in the ordinal number of the element, the acidic properties of oxides weaken.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between a particle and an electronic formula.
PARTICLE ELECTRONIC FORMULA
A) P +5 1) 1s 2 2s 2
B) F 2) ls 2 2s 2 2p 6 3s 2 3p 6
C) O -2 3) 1s 2 2s 2 2p 6 3s 2 3p 5
D) Cl +7 4) 1s 2 2s 2 2p 6 3s 2 3p 3
5) ls 2 2s 2 2p 6
6) 1s 2 2s 2 2p 5
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. Nitrogen interacts with substances:
1) H 2 O 4) NaCl
2) CO 2 5) O 2
3) Mg 6) H 2
The answer to task B 3 is a number. Write this number on the answer sheet without specifying units of measure.
AT 3. The mass fraction of oxygen (in%) in phosphoric acid is _______ (write down the number, to the nearest tenth)
Part 3
Write down the task number and the full solution
From 1. According to the reaction equation H 2 + C1 2 2HCl, calculate the volumes of the starting substances
(n.a.), which are necessary to obtain 3 mol of hydrogen chloride gas.
Test No. 3
NON-METALS
OPTION -4
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. The formulas of the higher oxide and volatile hydrogen compound of the element E with the electronic formula of the atom ls 2 2s 2 2p 6 3s 2 3p 3:
1) EO 2 and EN 4 3) EO 3 and H 2 E
2) E 2 O 5 and EN 3 4) E 2 O 7 and NE
A 2. The ability of atoms to accept electrons increases in the series:
1) P - S - Cl - Si 3) Si - P - S - Cl
2) Cl - S - P - Si 4) S - Si - P - Cl
A 3. The transformation scheme C 0 → C +4 corresponds to the chemical equation:
1) 2C + O 2 = 2CO 3) C + 2CuO = 2Cu + CO 2
2) CO 2 + CaO \u003d CaCO 3 4) C + 2H 2 \u003d CH 4
A 4. Sulfur oxide (IV) does not interact with a substance whose formula is:
1) NaOH 2) H 2 O 3) CO 2 4) CaO
A 5. The SO 4 2- ion can be detected using a solution containing a cation:
1) barium 3) potassium
2) hydrogen 4) copper
A 6. Are the following statements correct?
A. In a group, with an increase in the atomic number of the element, the acidic properties of oxides increase.
B. In the group, with an increase in the atomic number of the element, the acidic properties of oxides weaken.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between a particle and an electronic formula
PARTICLE ELECTRONIC FORMULA
A) S +6 1) 1s 2 2s 2
B) F - 2) ls 2 2s 2 2p 6 3s 2
C) O 3) 1s 2 2s 2 2p 6 3s 2 3p 5
D) C -4 4) 1s 2 2s 2 2p 6 3s 2 3p 3
5) ls 2 2s 2 2p 6
6) 1s 2 2s 2 2p 4
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. Phosphorus interacts with substances:
1) H 2 O 4) NaOH
2) Ca 5) O 2
3) Cl 2 6) Na
The answer to task B 3 is a number. Write this number on the answer sheet without specifying units of measure.
AT 3. The mass fraction of oxygen (in%) in silicic acid is _______ (write down the number, accurate to tenths)
Part 3
Write down the task number and the full solution
From 1. According to the reaction equation N 2 + 3Н 2 2NH 3, calculate the volumes of starting materials (n.a.) required to obtain 2 mol of ammonia.
Test No. 4
Final control work
OPTION 1
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1.
1) 2e,6e 3) 2e,8e,6e
2) 2e,8e,5e 4) 2e,8e,7e
A 2.
1) S , P , Si 3) Se , S , O
2) P, S, O 4) Be, B, Al
A 3
2) acidic 4) basic
A 4.
A 5.
A 6. Are the following statements correct?
A.
B.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1.
STARTING SUBSTANCES: REACTION PRODUCTS
A) Ca and S 1) Ca (OH) 2
B) Ca (OH) 2 and H 2 SO 4 2) Ca 2 S
C) CaO and H 2 O 3) CaS
D) Ca and O 2 4) CaSO 4 and 2H 2 O
5) Ca (OH) 2 and H 2
6) CaO
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2
1) Cu 4) Mg
2) CuO 5) BaCl 2
3) NaOH 6) SO 2
Part 3
Write down the task number and the full solution
C 1. What volume of carbon monoxide (IV) is formed during the interaction of 60 g of calcium carbonate containing 10% impurities with hydrochloric acid?
Test No. 4
Final control work
OPTION -2
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1.
1) 2e,8e,4e 3) 2e,8e,2e
2) 2e,8e,3e 4) 2e,8e,1e
A 2. A number of elements arranged in order of increasing atomic radii:
1) Be , B , Al 3) Li , Be , B
2) Na, Mg, Be 4) Be, Mg, Ca
A 3. calcium oxide is
1) amphoteric 3) non-salt-forming
2) acidic 4) basic
A 4. An irreversible chemical reaction will occur when solutions of substances are drained, the formulas of which are:
A 5.
A 6. Are the following statements correct?
A.
B.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the formulas of the starting substances and reaction products:
A) SO 3 and H 2 O 1) H 2 SO 3
B) HCl and Na 2 S 2) Na 2 SO 4 and H 2 O
C) Na 2 O and H 2 SO 4 3) H 2 S
D) H 2 S and O 2 4) H 2 SO 4
5) 2NaCl and H 2 S
6) H 2 O and SO 2
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. React with sodium hydroxide solution:
1) CuSO 4 4) HNO 3
2) CuO 5) Zn(OH) 2
3) KOH 6) CO 2
Part 3
Write down the task number and the full solution
C 1. What volume of nitric oxide (IV) is formed during the interaction of nitric acid with 140 g of copper containing 15% impurities?
Test No. 4
Final control work
OPTION -3
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1.
1) 2e,8e,6e 3) 2e,8e,8e
2) 2e,8e,7e 4) 2e,8e,8e,1e
A 2. A number of elements arranged in order of increasing atomic radii:
1) Be, B, C 3) Si, C, N
2) F, Cl, Br 4) Na, Mg, Ca
A 3. Aluminum oxide is
1) amphoteric 3) non-salt-forming
2) acidic 4) basic
A 4. An irreversible chemical reaction will occur when solutions of substances are drained, the formulas of which are:
A 5.
2) N +2 → N -3 4) N -3 → N +2
A 6. Are the following statements correct?
A. In the H 2 SO 3 compound, the oxidation state of sulfur is maximum
B. In the H 2 SO 3 compound, the oxidation state of sulfur is minimal
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the formulas of the starting substances and reaction products:
STARTING SUBSTANCES: REACTION PRODUCTS:
A) Fe and HCl 1) FeCl 2
B) Fe (OH) 3 and HCl 2) FeCl 2 and H 2 O
C) FeCl 3 and NaOH 3) FeCl 3
D) Fe and Cl 2 4) FeCl 2 and H 2
5) FeCl 3 and 3H 2 O
6) Fe (OH) 3 and 3NaCl
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2
1) Zn 4) Na 2 CO 3
2) Mg(OH) 2 5) BaCl 2
3) Na 2 O 6) SO 2
Part 3
Write down the task number and the full solution
C 1. What volume of carbon dioxide is formed during the decomposition of calcium bicarbonate weighing 240 kg, containing 20% impurities?
Test No. 4
Final control work
OPTION -4
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1.
1) 2e,8e,1e 3) 2e,8e,3e
2) 2e,8e,2e 4) 2e,8e,4e
A 2. A number of elements arranged in order of increasing atomic radii:
1) P, S, Cl 3) O, F, Cl
2) N , P , As 4) N , O , S
A 3. Carbon monoxide (II) is
1) amphoteric 3) non-salt-forming
2) acidic 4) basic
A 4. An irreversible chemical reaction will occur when solutions of substances are drained, the formulas of which are:
1) FeSO 4 and NaOH 3) HNO 3 and K 2 SO 4
2) Na 2 SO 4 and HNO 3 4) Na 2 SO 4 and KOH
A 5. The reaction equation N 2 + 3H 2 = 2NH 3 corresponds to the transformation scheme:
1) N +5 → N +0 3) N 0 → N -3
2) N -3 → N +4 4) N 0 → N +2
A 6. Are the following statements correct?
A.
B.
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the formulas of the starting substances and reaction products:
STARTING SUBSTANCES: REACTION PRODUCTS:
A) P and O 2 1) PO
B) P 2 O 5 and H 2 O 2) Ca 3 (PO 4) 2 and 6H 2 O
C) H 3 PO 4 and Ca (OH) 2 3) 2P 2 O 5
D) P and Cl 2 4) CaP and H 2 O
5) 2H3PO4
6) 2PCl 5
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2
1) H 2 SO 4 4) Cu
2) CO 2 5) NaCl
3) Na 2 CO 3 6) K 2 O
Part 3
Write down the task number and the full solution
C 1. What volume of sulfur oxide (IV) is formed by the interaction of sulfuric acid with 200 g of silver containing 10% impurities?
Test No. 4
Final control work
OPTION 1
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. Scheme of distribution of electrons over layers in an atom of a chemical element that forms compounds corresponding to the general formulas H 2 E and EO 3
1) 2e,6e 3) 2e,8e,6e
2) 2e,8e,5e 4) 2e,8e,7e
A 2. A number of elements arranged in order of increasing atomic radii:
1) S , P , Si 3) Se , S , O
2) P, S, O 4) Be, B, Al
A 3. Carbon monoxide (IV) is
1) amphoteric 3) non-salt-forming
2) acidic 4) basic
A 4. An irreversible chemical reaction will occur when solutions of substances are drained, the formulas of which are:
1) KOH and NaCl 3) CuCl 2 and KOH
2) MgCl 2 and HNO 3 4) Al 2 (SO 4 ) 3 and Cu(NO 3 ) 2
A 5. The reaction equation 2NO + O 2 = 2NO 2 corresponds to the transformation scheme:
1) N +2 → N +5 3) N -3 → N +2
2) N +4 → N 0 4) N +2 → N +4
A 6. Are the following statements correct?
A. The oxidation state of the chromium atom in the CrO compound is +3
B. The oxidation state of the chromium atom in the Cr 2 O 3 compound is +3
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1.
A) HSON 1) Alkane
B) C 4 H 10 2) Alkene
C) CH 3 OH 3) Aldehyde
D) CH 3 COOH 4) Alcohol
5) Carboxylic acid
6) Ether
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. React with dilute sulfuric acid:
2) CuO 5) BaCl 2
Part 3
Write down the task number and the full solution
C 1. What volume of carbon monoxide (IV) is formed during the combustion of 11.2 liters of propane?
Test No. 4
Final control work
(with questions from organic chemistry)
OPTION -2
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. Scheme of distribution of electrons over layers in an atom of a chemical element that forms compounds corresponding to the general formulas EN 2 and EO
1) 2e,8e,4e 3) 2e,8e,2e
2) 2e,8e,3e 4) 2e,8e,1e
A 2. A number of elements arranged in order of increasing atomic radii:
1) Be, B, Al 3) Li, Be, B
2) Na, Mg, Be 4) Be, Mg, Ca
A 3. calcium oxide is
1) amphoteric 3) non-salt-forming
2) acidic 4) basic
A 4. An irreversible chemical reaction will occur when solutions of substances are drained, the formulas of which are:
1) NaCl and MgSO 4 3) NaOH and KI
2) HCl and Na 2 SO 4 4) KOH and CuCl 2
A 5. The reaction equation 2SO 2 + O 2 = 2SO 3 corresponds to the transformation scheme:
1) S +4 → S +6 3) S -2 → S +4
2) S +4 → S 0 4) S 0 → N +6
A 6. Are the following statements correct?
A. Non-metals exhibit only reducing properties
B. Non-metals exhibit reducing and oxidizing properties
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the formula of the substance and the class of the compound:
SUBSTANCE FORMULA: COMPOUND CLASS
A) C 2 H 5 OH 1) Alkane
B) C 3 H 8 2) Alkene
C) CH 3 SON 3) Aldehyde
D) C 3 H 6 4) Alcohol
5) Carboxylic acid
6) Ether
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. React with sodium hydroxide solution:
1) CuSO 4 4) HNO 3
2) CuO 5) Zn(OH) 2
3) KOH 6) CO 2
Part 3
Write down the task number and the full solution
C 1. What volume of oxygen is required to burn 10 liters of ethene?
Test No. 4
Final control work
(with questions from organic chemistry)
OPTION -3
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. Scheme of the distribution of electrons over layers in an atom of a chemical element that forms compounds corresponding to the general formulas NE and E 2 O 7
1) 2e,8e,6e 3) 2e,8e,8e
2) 2e,8e,7e 4) 2e,8e,8e,1e
A 2. A number of elements arranged in order of increasing atomic radii:
1) Be, B, C 3) Si, C, N
2) F, Cl, Br 4) Na, Mg, Ca
A 3. Aluminum oxide is
1) amphoteric 3) non-salt-forming
2) acidic 4) basic
A 4. An irreversible chemical reaction will occur when solutions of substances are drained, the formulas of which are:
1) NaNO 3 and H 2 SO 4 3) CaCl 2 and Na 2 CO 3
2) KCl and NaOH 4) CuSO 4 and HCl
A 5. The reaction equation 4NH 3 + 5O 2 = 4NO + 6H 2 O corresponds to the transformation scheme:
1) N -3 → N 0 3) N +3 → N +2
2) N+2 → N -3 4) N -3 → N +2
A 6. Are the following statements correct?
A. In conjunction H 2 SO 3 sulfur oxidation state maximum
B. In conjunction H 2 SO 3 sulfur oxidation state minimum
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the formula of the substance and the class of the compound:
SUBSTANCE FORMULA: COMPOUND CLASS
A) CH 4 1) Alkane
B) C 3 H 7 OH 2) Alkyne
C) CH 3 OCH 3 3) Aldehyde
D) C 3 H 4 4) Alcohol
5) Carboxylic acid
6) Ether
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. React with hydrochloric acid:
1) Zn 4) Na 2 CO 3
2) Mg(OH) 2 5) BaCl 2
3) Na 2 O 6) SO 2
Part 3
Write down the task number and the full solution
C 1. What volume of carbon monoxide ( IV) is formed during the combustion of 16 liters of methane?
Test No. 4
Final control work
(with questions from organic chemistry)
OPTION -4
Part 1
When completing the tasks of this part, under the number of the task you are performing, put an “X” in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. Scheme of distribution of electrons over layers in an atom of a chemical element that forms compounds corresponding to the general formulas EN and E 2 O
1) 2e,8e,1e 3) 2e,8e,3e
2) 2e,8e,2e 4) 2e,8e,4e
A 2. A number of elements arranged in order of increasing atomic radii:
1) P, S, Cl 3) O, F, Cl
2) N, P, As 4) N, O, S
A 3. Carbon monoxide ( II) is an
1) amphoteric 3) non-salt-forming
2) acidic 4) basic
A 4. An irreversible chemical reaction will occur when solutions of substances are drained, the formulas of which are:
1) FeSO 4 and NaOH 3) HNO 3 and K 2 SO 4
2) Na 2 SO 4 and HNO 3 4) Na 2 SO 4 and KOH
A 5. reaction equation N 2 + 3H 2 = 2NH 3 corresponds to the transformation scheme:
1) N +5 → N +0 3) N 0 → N -3
2) N -3 → N +4 4) N 0 → N +2
A 6. Are the following statements correct?
A. Metals exhibit only reducing properties
B. Metals exhibit reducing and oxidizing properties
1) only A is true 3) only B is true
2) both judgments are correct 4) both judgments are wrong
Part 2.
In task B1 to establish a correspondence, write down a sequence of numbers without spaces and other characters.
IN 1. Establish a correspondence between the formula of the substance and the class of the compound:
SUBSTANCE FORMULA: COMPOUND CLASS
A) C 4 H 9 OH 1) Alkane
B) C 4 H 9 SON 2) Alkyne
C) C 4 H 6 3) Aldehyde
D) C 4 H 9 COOH 4) Alcohol
5) Carboxylic acid
6) Ether
The answer to task B 2 is a sequence of numbers in ascending order.
IN 2. Reacts with calcium hydroxide:
1) H 2 SO 4 4) Cu
3) Na 2 CO 3 6) K 2 O
Part 3
Write down the task number and the full solution
C 1. What volume of oxygen is required to burn 20 liters of ethine?
Option 1
Part 1
A1. The main oxides are:
1) bromine(VII) oxide; 2) sodium oxide;
3) sulfur(IV) oxide; 4) aluminum oxide.
A2. The sum of the coefficients in the reaction equation between aluminum oxide and sulfuric acid
is equal to:
1) 6; 2) 8; 3) 10; 4) 12.
1) an aqueous solution of glucose;
2) an aqueous solution of sodium chloride;
3) sulfur melt;
4) silicon oxide melt.
1) potassium chloride and copper(II) nitrate;
2) sulfuric acid and barium chloride;
3) sodium sulfate and potassium hydroxide;
4) sodium nitrate and iron(III) chloride.
A5. Reacts with dilute sulfuric acid:
1) copper;
2) water;
3) carbon monoxide(IV);
4) sodium oxide.
A. Hard alkali should not be handled by hand.
B. To determine the gas by smell, you need to bend over the vessel and take a deep breath.
1) Only A is true;
2) only B is true;
3) both judgments are true;
4) both judgments are wrong.
A7. The mass fraction of oxygen in calcium carbonate is:
1) 15 %; 2) 27 %; 3) 48 %; 4) 54 %.
Part 2
IN 1. Select the reaction equations in which the element nitrogen is a reducing agent.
1) N2 + O2 = 2NO; 2) 2NO + O2 = 2NO2;
3) N2 + 3H2 = 2NH3; 4) N2 + 3Mg = Mg3N2;
5) N2 + 6Li = 2Li3N.
Answer: ………………… .
A) SO2 + H2O -> . 1) H2SO4.
B) SO3 + NaOH -> .
C) H2SO4 + Na2O -> .
4) Na2SO4 + H2O.
5) Na2SO4 + H2.
2) H2SO3.
3) SO3 + H2.
B
Answer: ……………………. .
V
Part 3
transformations:
AlCl3 -> X -> Al2O3 -> NaAlO2.
Option 2
Part 1
Carefully read each task (A1 - A7), from the four proposed answers
choose the correct one and mark it.
A1. Acid oxides include:
1) barium oxide; 2) potassium oxide;
3) phosphorus(V) oxide; 4) copper(II) oxide.
A2. The sum of the coefficients in the equation for the reaction between calcium and phosphoric acid
is equal to:
1) 9; 2) 10; 3) 11; 4) 12.
A3. Electrical current does not conduct:
1) hydrochloric acid solution;
2) sucrose solution;
3) sodium hydroxide solution;
4) sodium hydroxide melt.
A4. The ion exchange reaction between solutions proceeds almost irreversibly:
1) sodium chloride and silver nitrate;
2) sulfuric acid and sodium nitrate;
3) potassium sulfate and copper(II) chloride;
4) hydrochloric acid and sodium sulfate.
A5. Reacts with sodium hydroxide solution:
1) copper(II) oxide; 2) hydrogen;
3) silver; 4) hydrochloric acid.
A6. Are the following judgments about the rules of safe work in a chemical laboratory correct?
A. The tube to be heated must be held with the opening away from you.
B. To accelerate the dissolution of solids in the test tube, close its opening with your finger and
shake.
1) Only A is true;
2) only B is true;
3) both judgments are true;
4) both judgments are wrong.
A7. The mass fraction of oxygen in sulfur oxide (VI) is equal to:
1) 25 %; 2) 44 %; 3) 52 %; 4) 60 %.
Part 2
The answer to task B1 is a sequence of two digits that corresponds to the numbers
correct answers. Write these numbers on the answer line.
B1. Select the reaction equations in which the element iron is an oxidizing agent.
1) 2Fe + 3Cl2 = 2FeCl3;
2) FeO + H2 = Fe + H2O;
3) Fe + H2O = FeO + H2;
4) Fe3O4 + 4CO = 3Fe + 4CO2;
5) 4Fe(OH)2 + O2 + 2H2O = 4Fe(OH)3.
Answer: ……………. .
In task B2 (to establish correspondence), write down the numbers of your chosen answers in the table.
Write the resulting sequence of numbers in the answer line.
IN 2. Establish a correspondence between the starting materials and the products of the reaction.
3) CaCl2 + H2O + CO2.
1) CaCO3 + H2.
2) CaCO3 + H2O.
Starting materials Reaction products
A) Ca(OH)2 + CO2 -> .
B) CaCO3 + HCl -> .
C) Ca + H2O -> .
4) CaO + H2.
5) Ca(OH)2 + H2.
Answer: ……………………. .
B
Part 3
C1. Write the reaction equations that can be used to carry out the following
transformations:
SO2 -> SO3 -> X -> BaSO4.
Option 3
Part 1
Carefully read each task (A1 - A7), from the four proposed answers
choose the correct one and mark it.
A1. Amphoteric oxides include:
1) magnesium oxide; 2) carbon monoxide(IV);
3) aluminum oxide; 4) nitric oxide (V).
A2. The sum of the coefficients in the equation for the reaction between iron(III) hydroxide and hydrochloric
acid is:
1) 8; 2) 9; 3) 10; 4) 12.
A3. Electric current conducts:
1) an aqueous solution of alcohol;
2) aqueous glucose solution;
3) melt sugar;
4) sodium chloride melt.
A4. The ion exchange reaction between solutions proceeds almost irreversibly:
1) sodium nitrate and copper(II) sulfate;
2) calcium chloride and barium nitrate;
3) potassium hydroxide and sodium nitrate;
4) iron(II) sulfate and sodium hydroxide.
A5. Reacts with calcium carbonate solution:
1) copper(II) oxide; 2) water;
3) sodium chloride; 4) hydrochloric acid.
A6. Are the following judgments about the rules of safe work in a chemical laboratory correct?
A. It is impossible to pour (pour) the excess reagent taken by mistake back into the bottle.
B. It is forbidden to eat in the chemistry room.
1) Only A is true;
2) only B is true;
3) both judgments are true;
4) both judgments are wrong.
A7. The mass fraction of oxygen in copper(II) sulfate is:
1) 24 %; 2) 40 %; 3) 52 %; 4) 65 %.
Part 2
The answer to task B1 is a sequence of two digits that corresponds to the numbers
correct answers. Write these numbers on the answer line.
IN 1. Select the reaction equations in which the element hydrogen is a reducing agent.
1) C + 2H2 = CH4;
2) Zn + 2HCl = ZnCl2 + H2;
3) CuO + H2 = Cu + H2O;
4) 2H2S + 3O2 = 2H2O + 2SO2;
5) 2Li + H2 = 2LiH.
Answer: ………………. .
In task B2 for establishing correspondence, write down the numbers of your chosen answers in the table.
Write the resulting sequence of numbers in the answer line.
IN 2. Establish a correspondence between the starting materials and the products of the reaction.
1) H3PO4.
2) P2O5.
3) Na3PO4 + H2.
Starting materials Reaction products
A) P + O2 -> .
B) P2O5 + NaOH -> .
C) H3PO4 + Na2O -> .
4) Na3PO4 + H2O.
5) H3PO4 + H2O.
Answer: ………………. .
B
Part 3
C1. Write the reaction equations that can be used to carry out the following
transformations:
Fe2O3 -> FeCl3 -> X -> Fe(NO3)3.4
A7
Answers to the tasks of part 2 (with a short answer).
Answer
Exercise
24
IN 1
IN 2
235
1) 2SO2 + O2 = 2SO3.
2) SO3 + H2O = H2SO4;
3) H2SO4 + BaCl2 = BaSO4 + 2HCl.
Option 3
Answers to the tasks of part 1 (with a choice of answers):
Answer
Exercise
A1
3
1
A2
4
A3
4
A4
A5
4
3
A6
A7
2
Answers to the tasks of part 2 (with a short answer).
Answer
Exercise
13
IN 1
IN 2
244
Elements of the answer of the task of part 3.
(Other formulations of the answer are allowed that do not distort its meaning.)
1) Fe2O3 + 6HCl 2FeCl3 + 3H2O;
2) FeCl3 + 3NaOH = 3NaCl + Fe(OH)3;
3) Fe(OH)3 + 3HNO3 = Fe(NO3)3 + 3H2O.
Chemistry. Grade 9 Control and verification work. Gabrielyan O.S., Berezkin P.N. and etc.
M.: 20 1 3. - 2 40 s.
The manual is part of the educational complex in chemistry, the basis of which is the textbook by O. S. Gabrielyan “Chemistry. Grade 9", revised in accordance with the Federal State Educational Standard. The educational edition consists of texts of control and verification works corresponding to the program in chemistry for the 9th grade of O. S. Gabrielyan. The manual is intended for conducting current and final control on the main topics of the course.
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Content
Preface 3
Thematic test papers
Periodic law and Periodic system of chemical elements of D. I. Mendeleev 5
Chemical organization of nature. Chemical reactions. Rate of chemical reactions 18
The position of metals in the Periodic system of chemical elements of D. I. Mendeleev. Physical properties of metals. Alloys 32
Chemical properties of metals 42
Alkali metals and their compounds 53
Metals of group II of the main subgroup 63
Aluminum and its compounds 73
Iron and its compounds 84
General characteristics of non-metals. Oxygen, ozone, air 95
Hydrogen and water 105
Halogens 116
Oxygen subgroup 126
Nitrogen and its compounds 137
Phosphorus and its compounds 148
Subgroup carbon 158
Combined tests
Metals 170
Nonmetals 181
Final test for the course of the basic school 193
Preparation for the state final certification (GIA)
Periodic law of D. I. Mendeleev.
The structure of the atom 205
Chemical reactions 211
Chemical properties of inorganic substances 217
Exemplary GIA options
Option 1 224
Option 2 229
Considered Agreed I approve
№
Option 1
Exercise 1.Give a complete description of the element with serial number 15.
Task 2.
a) AI + O2
b) Mg + H2 SO4
v)CaCO3
G)HCI + Na2 CO3
Task 3.
a)BaCI2 + H3 PO4
b) NSI + AgNO3
Task 4.
V)
b) zinc + nitric acid zinc nitrate + hydrogen
c) barium chloride + sulfuric acid
Task 5.
Considered Agreed I approve
At the meeting of the ShMO Deputy Director for Water Management Director MOU Dmitrievo
Protocol dated _______2017 MOU Dmitrievo Pomryaskinskaya secondary school Pomryaskinskaya secondary school
№__________ _________________ Vitman D.A. ______________Dubrovskaya Yu.A.
Minutes of MS dated ________ 2017 No. _____ Order dated ______ 2017 No. _______
Entrance control in chemistry Grade 9
Option 2
Exercise 1.Give a complete description of the element with serial number 19.
Task 2Add reactions, name complex substances, indicate the type of reaction:
a)Zn + O2
b)mg + HCI
v)H2 O
G)H2 SO4 + K2 CO3
Task 3.Complete the reactions and write them in ionic forms? Give names to substances:
a)Ba( NO3 ) 2 + H3 PO4
b)NaWITHI + AgNO3
Task 4.Make up the reactions, arrange the coefficients, indicate the type of reactions:
a) phosphorus + oxygen phosphorus oxide (III)
c) copper chloride + sodium hydroxide
Task 5.Calculate the volume of carbon dioxide (at N.C.) if it was released during the interaction of 230 g of a solution containing 10% sodium carbonate with nitric acid.
(entrance control) in chemistry grade 9
Job assignment - control of the level of preparation of students in chemistry for the course of the 8th grade.
Time spending - 40 minutes (1 lesson).
The material of the main chemical blocks is subject to verification, to which the content of the school chemistry course is distributed: “Structure of the atom of a chemical element”, “Complete characteristics of a chemical element”, “Nomenclature of inorganic substances”, “Types of chemical reactions”, “Ion exchange reactions”, “Composition of chemical reactions according to the scheme”, “Solving chemical problems using the concept of impurities”, “Solving chemical problems for solutions”.
| № tasks | Level of difficulty | Job Type |
|
| Base | |||
| Base | Taking Action (Decision) |
||
| Base | Taking Action (Decision) |
||
| 2,4 | Types of chemical reactions | Base | Taking Action (Decision) |
| Ion exchange reactions | Base | Taking Action (Decision) |
|
| Drawing up chemical reactions according to the scheme | Base | Taking Action (Decision) |
|
| Base | Taking Action (Decision) |
||
| Base | Taking Action (Decision) |
Evaluation criteria - the first and fifth tasks are evaluated up to 5 points, each correct answer of tasks 2-4 (under each letter) is estimated at 1 point. For an incorrect answer or no answer, 0 points are given. The maximum number of points in the work is 19. The recommended scale for converting points into an assessment:
| Points | 0 - 7 | 8 - 13 | 14 - 16 | 17 - 19 |
| Grade |
Answers to tasks. Option 1
Exercise 1.
1. P - sulfur, non-metal
2. Located in the fifth group of the PS, the main subgroup, in the 3rd period.
3. 15 RR+ 15n0 16 1S2 2S2 2P6 3S2 3P5 3d0
e- 15
4. Non-metallic properties in a period increase from left to right.
5. Non-metallic properties in groups decrease from top to bottom
6. P2 O5 - the formula of the highest oxide, exhibits oxidizing properties
7. PH3 - the formula of the hydrogen volatile compound, phosphine.
Task 2.
a)4AI + 3 O2 2 AI2 O3 - alumina, compound reaction
b)mg + H2 SO4 (sulphuric acid)mgSO4 (magnesium sulfate)+H2 - substitution reaction
v)CaCO3 (calcium carbonate)CaO (calcium oxide) +CO2 (carbon monoxide(IV)) - decomposition reaction
d) 2HCI + Na2 CO3 2 NaCI + H2 Oh +CO2 (carbon monoxide(IV)) - exchange reaction
hydrochloric acid sodium carbonate sodium chloride hydrogen oxide
Task 3.
a) 3BaCI2 + 2 H3 PO4 Ba3 ( PO4 ) 2 + 6 HCI
barium chloride phosphoric acid barium phosphate hydrochloric acid
3 Wa2+ + 6CI- + 6 H+ + 2 PO4 3- Ba3 (PO4 ) 2 + 6H+ + 6CI-
3 Wa2+ + 2 PO4 3- Ba3 (PO4 ) 2
b) NSI + AgNO3 AgWITHI+HNO3
hydrochloric acid silver nitrate silver chloride nitric acid
H+ + WITHI- + Ag+ + NO3 - AgWITHI+H+ + NO3 -
Ag+ + CI- AgWITHI
Task 4.
a) phosphorus + oxygen phosphorus oxide (V)
4P + 5O2 2R2 O5 - compound reaction
b) zinc + nitric acid zinc nitrate + water + nitric oxide (IV)
Zn+4 NNO3 Zn( NO3 ) 2 + 2 H2 O + 2 NO2 - substitution reaction
c) barium chloride + sulfuric acid barium sulfate + hydrochloric acid
BaCI2 + H2 SO4 2 NSI + BaSO4 - exchange reaction
Task 5.
Given: Solution:
m( CaCO3
wetc
VmXg. - pure substance
V( CO2 ) - ? m( CaCO3 ) \u003d 250 * 90/100 \u003d 225 g.
225vl. - according to the task
CaCO3 + H2 SO4 Ca SO4 + H2 O+ CO2
V( CO2 ) \u003d 225 * 22.4 / 100 \u003d 50.4 liters.
Answer:V( CO2 ) = 50.4 l.
Answers to tasks. Option 2
Exercise 1.
1. K - potassium, metal.
2. Located in the PS in the first group, the main subgroup, in the fourth period.
3. 19 TOR+ 19n0 20 1S2 2S2 2P6 3S2 3P6 3d0 4S1
e- 19
6. K2 O - the formula of the highest oxide, exhibits the main properties
Task 2.
a)2Zn + O2 2 ZnO- zinc oxide, compound reaction
b)mg + 2 HCI(hydrochloric acid)mgCI2 (magnesium chloride)+H2 - substitution reaction
in 2H2 O(hydrogen oxide) 2H2 + O2 - decomposition reaction
G)H2 SO4 + K2 CO3 K2 SO4 + H2 Oh +CO2 (carbon monoxide(IV)) - exchange reaction
Exercise 3.
a)3 Ba(NO3 ) 2 + 2H3 PO4 Ba3 (PO4 ) 2 + 6HNO3
barium nitrate phosphoric acidbarium phosphate nitric acid
3Ba2+ + 6NO3 - + 6H+ + 2PO4 3- Ba3 (PO4 ) 2 + 6H + 6 NO3 -
3 Wa2+ + 2 PO4 3- Ba3 (PO4 ) 2
b) NaWITHI + AgNO3 NaNO3 + AgWITHI
sodium chloride silver nitrate sodium nitrate silver chloride
Na+ + WITHI- + Ag+ + NO3 - Na+ + NO3 - + AgWITHI
Ag+ + CI- AgWITHI
Task 4.
a) phosphorus + oxygen phosphorus oxide (III)
4P + 3O2 2R2 O3 - compound reaction
b) zinc + hydrochloric acid zinc chloride + hydrogen
Zn + 2 HCIZnCI2 + H2 - substitution reaction
c) copper chloride (II) + sodium hydroxide copper hydroxide(II) + sodium chloride
CuCI2 +2 NaOHCu( Oh) 2 + 2 NaCI- exchange reaction
Task 5.
Given: Solution:
m( Na2 CO3 ) = 230 g. 1. Find the mass of pure sodium carbonate.
wetc\u003d 10% 100 g with impurities - 90 g of pure substance
Vm\u003d 22.4 l / mol 230 g with impurities -Xg. - pure substance
V( CO2 ) - ? m( CaCO3 ) \u003d 230 * 90/100 \u003d 207 g.
2. Find the volume of carbon dioxide.
207vl. - according to the task
Na2 CO3 +2 HNO3 2Na NO3 + H2 O+ CO2
106 g. 22.4 l. - according to the reaction equation
V( CO2 ) \u003d 207 * 22.4 / 106 \u003d 43.7 l.
Answer:V( CO2 ) = 43.67 l.
Considered Agreed I approve
At the meeting of the ShMO Deputy Director for Water Management Director MOU Dmitrievo
Protocol dated _______2017 MOU Dmitrievo Pomryaskinskaya secondary school Pomryaskinskaya secondary school
№__________ _________________ Vitman D.A. ______________Dubrovskaya Yu.A.
Minutes of MS dated ________ 2017 No. _____ Order dated ______ 2017 No. _______
Option 1
Exercise 1.Give a complete description of the element with serial number 25.
Task 2.
H2 O2 + TOMNO4 + H2 SO4 O2 +MnSO4 + K2 SO4 + H2 O
Task 3.
BaCI2 + H3 PO4
Task 4.
Na2 S
Task 5.Calculate the volume of carbon dioxide (at N.C.) if it was released during the interaction of 250 g of chalk containing 10% impurities with sulfuric acid.
Considered Agreed I approve
At the meeting of the ShMO Deputy Director for Water Management Director MOU Dmitrievo
Protocol dated _______2017 MOU Dmitrievo Pomryaskinskaya secondary school Pomryaskinskaya secondary school
№__________ _________________ Vitman D.A. ______________Dubrovskaya Yu.A.
Minutes of MS dated ________ 2017 No. _____ Order dated ______ 2017 No. _______
Entrance control in chemistry Grade 10
Option 2
Exercise 1.Give a complete description of the element with serial number 30.
Task 2.Equalize the reaction using the electronic balance method:
Na2 SO3 + TOMNO4 + H2 O Na2 SO4 +MnO2 +KOH
Task 3.Complete the reaction and write it in ionic form:
AICI3 + AgNO3
Task 4.Write the hydrolysis of salt, including in ionic forms:
FeCI3
Task 5.Calculate the volume of hydrogen (at n.o.) if it was released during the interaction of 240 g of magnesium containing 12% impurities with hydrochloric acid.
Test paper specification
(entrance control) in chemistry grade 10
Job assignment - control of the level of preparation of students in chemistry for the course of the 9th grade.
Time spending - 40 minutes (1 lesson).
General characteristics of the content and structure of the work:
The work consists of one part containing 5 tasks requiring solutions.
With the help of tasks aimed at checking the basic level of preparation in chemistry, knowledge and understanding of important elements of the content (concepts, their properties, methods for solving tasks, etc.), knowledge of basic algorithms, and the ability to apply knowledge in solving chemical problems are checked. When performing these tasks, students must also demonstrate a certain systemic knowledge and breadth of ideas, the ability to move from one chemical language to another.
The material of the main chemical blocks is subject to verification, to which the content of the school chemistry course is distributed: “Structure of the atom of a chemical element”, “Complete characteristics of a chemical element”, “Nomenclature of inorganic substances”, “Redox reactions”, “Ion exchange reactions”, “Hydrolysis of substances ”, “Solving chemical problems using the concept of impurities”.
| № tasks | Checked Content Elements | Level of difficulty | Job Type |
| The structure of the atom of a chemical element | Base | Taking Action (Decision) |
|
| Complete characterization of a chemical element | Base | Taking Action (Decision) |
|
| 2,3 | Nomenclature of inorganic substances | Base | Taking Action (Decision) |
| Redox reactions | Base | Taking Action (Decision) |
|
| Ion exchange reactions | Base | Taking Action (Decision) |
|
| Hydrolysis of substances | Base | Taking Action (Decision) |
|
| Solving chemical problems using the concept of impurities | Base | Taking Action (Decision) |
Evaluation criteria - the first and fifth tasks are evaluated up to 5 points, each correct answer of tasks 2-4 is estimated at 2 points. For an incorrect answer or no answer, 0 points are given. The maximum number of points in the work is 16. The recommended scale for converting points into an assessment:
| Points | 0 - 7 | 8 - 11 | 12 - 14 | 15 - 16 |
| Grade |
Answers to tasks. Option 1
Exercise 1.
1. Mn - manganese, transition metal.
2. It is located in the PS in the seventh group, a secondary subgroup, in the fourth period.
3. 25 MnR+ 25n0 30 1S2 2S2 2P6 3S2 3P6 3d 5 4S2
e- 25
4. Metallic properties in the period from left to right weaken.
5. Metallic properties in groups from top to bottom are enhanced
6. Мn2 O7 - higher oxide formula, exhibits amphoteric properties
7. The formula of a hydrogen volatile compound - none
Task 2.
5 H2 O2 + 2 TOMNO4 +3H2 SO4 5O2 + 2MnSO4 + K2 SO4 + 8H2 O
Mn+7 +5e- Mn+2 (oxidizer, reduction)
2 O-1 -2e- 2O-2 (reductant, oxidation)
Task 3.
3 BaCI2 + 2 H3 PO4 Wa3 ( PO4 ) 2 + 6HCI
3Ba2+ +6 CI- + 6H+ +3PO4 3- Wa3 (PO4 ) 2 + 6 H+ + 6CI-
3 Ba2+ +3 PO4 3- Wa3 ( PO4 ) 2
Task 4.
Na2 S2Na+ + S2-
H2 O H+ +OH-
2Na+ + S2- + H+ +OH- HS- + 2Na+ +OH-
Na2 S + H2 ONaHS + NaOH
Received as a result of hydrolysis acidic salt - sodium hydrosulfide, the environment of the solution is alkaline.
Task 5.
Given: Solution:
m( CaCO3 ) = 250 g. 1. Find the mass of pure sodium carbonate.
wetc\u003d 10% 100 g with impurities - 90 g of pure substance
Vm\u003d 22.4 l / mol 250 g with impurities -Xg. - pure substance
V( CO2 ) - ? m( CaCO3 ) \u003d 250 * 90/100 \u003d 225 g.
2. Find the volume of carbon dioxide.
225vl. - according to the task
CaCO3 + H2 SO4 Ca SO4 + H2 O+ CO2
100 g. 22.4 l. - according to the reaction equation
V( CO2 ) \u003d 225 * 22.4 / 100 \u003d 50.4 liters.
Answer:V( CO2 ) = 50.4 l.
Answers to tasks. Option 2
Exercise 1.
1. Zn- zinc, transition metal.
2. Located in the PS in the second group, secondary subgroup, in the fourth period.
3. 30 ZnR+ 30 n0 25 1S2 2S2 2P6 3S2 3P6 3d 10 4S2
e- 30
4. Metallic properties in the period from left to right weaken.
5. Metallic properties in groups from top to bottom are enhanced
6. ZnO - the formula of a higher oxide, exhibits amphoteric properties
7. The formula of a hydrogen volatile compound - none
Task 2.
3Na2 SO3 + 2 TOMNO4 + H2 O 3 Na2 SO4 + 2MnO2 +2 KOH
Mn+7 +3e- Mn+4 (oxidizer, reduction)
S+4 -2e- S+6 (reductant, oxidation)
Exercise 3.
AICI3 + 3AgNO3 AI(NO3 ) 3 + 3 AgCI
AI3+ + 3CI- + 3Ag+ +3 NO3 - AI3+ + 3NO3 - + 3 AgCI
3 Ag+ + 3 CI- 3 AgCI
Task 4.
FeCI3 Fe3+ + 3CI-
H2 O H+ +OH-
Fe3+ + 3CI- + H+ +OH- 3CI- + H+ + FeOH2+
FeCI3 + H2 OFeOHCI2 + HCI
The main salt formed as a result of hydrolysis is iron hydroxochloride (III), the medium of the solution is acidic.
Task 5.
Given: Solution:
m(mg) = 240 g. 1. Find the mass of pure magnesium.
wetc\u003d 12% 100 g with impurities - 88 g of pure substance
Vm\u003d 22.4 l / mol 240 with impurities -Xg. - pure substance
V(H2 ) - ? m (mg) \u003d 240 * 88/100 \u003d 211.2 g.
2. Find the volume of carbon dioxide.
211.2vl. - according to the task
Mg + 2HCI MgCI2 + H2
24 G. 22.4 l. - according to the reaction equation
V(CO2 ) \u003d 211.2 * 22.4 / 24 \u003d 197.12 liters.
Answer:V(H2 ) = 197.12 liters.
Considered Agreed I approve
At the meeting of the ShMO Deputy Director for Water Management Director MOU Dmitrievo
Protocol dated _______2017 MOU Dmitrievo Pomryaskinskaya secondary school Pomryaskinskaya secondary school
№__________ _________________ Vitman D.A. ______________Dubrovskaya Yu.A.
Minutes of MS dated ________ 2017 No. _____ Order dated ______ 2017 No. _______
Option 1
Exercise 1
a) CH2 = CH - CH3
b) CH3 - O - CH3 CH3
c) CH3 - CH2 - CH - COOH d)d) CH3
CH3
Task 2.
a) pentadiene - 1.3 c) 4 - methylpentanol - 2
b) butene - 2 g) 2.5 - dimethyl, 3 - ethylhexane
Task 3.
a) C2 H5 OH + O2 c) CH = C - CH3 + H2 O
b) CH2 = CH - CH2 - CH3 + HCI
Task 4.
a) phenol b) acetic acid
Task 5.Calculate the volume of ethylene at (n.o.) if it is released as a result of the dehydration reaction of 350 g of a solution containing 15% alcohol.
Considered Agreed I approve
At the meeting of the ShMO Deputy Director for Water Management Director MOU Dmitrievo
Protocol dated _______2017 MOU Dmitrievo Pomryaskinskaya secondary school Pomryaskinskaya secondary school
№__________ _________________ Vitman D.A. ______________Dubrovskaya Yu.A.
Minutes of MS dated ________ 2017 No. _____ Order dated ______ 2017 No. _______
Entrance control in chemistry Grade 11
Option 2
Exercise 1Give names to substances. What class of organic compounds do they belong to?
a) CH3 - CH3
b) CH3 - CH2 - OHd) d)Oh
v)C6 H6
Task 2.Make formulas of substances by name, sign the names under the formulas of substances. What class of organic compounds do they belong to?
a) 1 - methylbenzene c) 2,2 - dimethylbutanol - 1
b) butane d) pentine - 2
Task 3.Add reactions, give names to organic substances, indicate the conditions for the reactions to occur:
a) CH4 + O2 c) C2 H5 HE
b) C2 H6 + CI2
Task 4.How to recognize chemically:
a) acetylene b) chicken protein solution
Task 5.Calculate the volume and amount of hydrogen chloride substance at (n.o.) if it is released as a result of the chlorination reaction of 78.2 liters of propane.
Test paper specification
(entrance control) in chemistry grade 11
Job assignment - control of the level of preparation of students in chemistry for the course of the 10th grade.
Time spending - 40 minutes (1 lesson).
General characteristics of the content and structure of the work:
The work consists of one part containing 5 tasks requiring solutions.
With the help of tasks aimed at checking the basic level of preparation in chemistry, knowledge and understanding of important elements of the content (concepts, their properties, methods for solving tasks, etc.), knowledge of basic algorithms, and the ability to apply knowledge in solving chemical problems are checked. When performing these tasks, students must also demonstrate a certain systemic knowledge and breadth of ideas, the ability to move from one chemical language to another.
The material of the main chemical blocks is subject to verification, to which the content of the school chemistry course is distributed: "Nomenclature of organic substances", "Classification of organic substances" "Compilation of formulas of organic substances by their names", "Chemical properties of organic substances", "Qualitative reactions to organic substances" , "Solving chemical problems for solutions", "Solving chemical problems using the concept of the molar volume of a gaseous substance."
| № tasks | Checked Content Elements | Level of difficulty | Job Type |
| Nomenclature of organic substances | Base | Taking Action (Decision) |
|
| Classification of organic substances | Base | Taking Action (Decision) |
|
| Drawing up formulas of organic substances by their names | Base | Taking Action (Decision) |
|
| Chemical properties of organic substances | Base | Taking Action (Decision) |
|
| Qualitative reactions to organic substances | Base | Taking Action (Decision) |
|
| Solving chemical problems for solutions | Base | Taking Action (Decision) |
|
| Solving chemical problems using the concept of the molar volume of a gaseous substance | Base | Taking Action (Decision) |
Evaluation criteria - each task 1-4 is estimated at 1 point, for each letter of the correct answer, the fifth task is estimated up to 5 points. For an incorrect answer or no answer, 0 points are given. The maximum number of points in the work -18. Recommended scale for converting points into grade: 2
Answers to tasks. Option 1
Exercise 1.
a) propene, alkenes b) diethyl ether, ethers
c) 2-methylbutanoic acid, carboxylic acids
d) 1,2 - dimylylbenzene, aromatic hydrocarbons (arenes)
Task 2.
a) CH2 \u003d CH - CH \u003d CH - CH3 pentadiene - 1,3 (diene hydrocarbons)
b) CH3 - CH = CH - CH3 _ butene - 2 (alkenes)
c) CH3 -CH(OH)-CH2 - CH (CH3 ) - CH3 4 - methylpentanol - 2 (monohydric alcohols)
d) CH3 - CH(CH3 ) - CH (C2 H5 ) - CH2 - CH (CH3 ) - CH3 2,5 - dimethyl, 3 - ethylhexane (alkanes)
Task 3.
a) C2 H5 OH + 3O2 2 CO2 + 3H2 O c) CH = C - CH3 + H2 About CH2 = CH
ethanol propyne propen-ol-2
(OH) - CH3
b) CH2 = CH - CH2 - CH3 + HCICH3 - CH (CI) - CH2 - CH3
butene - 1 2-chlorobutane
Task 4.
a) C6 H5 OH + 3VrWITH6 H2 (Br) 3 OH + 3HBr
phenol 2,4,6 - tribromophenol
b) 2 CH3 UNSD+ Na2 CO3 2 CH3 SOONa + CO2 + H2 O
Task 5.
Given: Solution:
m(WITH2 H5 OH) \u003d 350 g. 1. Find the mass of ethyl alcohol.
w= 15 % m(WITH2 H5 OH) \u003d 350 * 15/100 \u003d 52.5 g.
Vm= 22.4 l/mol
V(WITH2 H4 ) - ?
2. Find the volume of ethylene.
52.5 g.vl. - according to the task
WITH2 H5 HE IS WITH2 H4 + H2 O
46 g. 22.4 l. - according to the reaction equation
V(C2 H4 ) \u003d 52.5 * 22.4 / 46 \u003d 25.6 liters.
Answer:V(WITH2 H4 ) = 25.6 l.
Answers to tasks. Option 2
Exercise 1.
a) ethane, class - alkanes b) ethanol, class - monohydric alcohols
c) benzene, arena class d) phenol, phenol class
Task 2.
CH3
a) 1-methylbenzene class - arenes
b) CH butane3 - CH2 - CH2 - CH3 class - alkanes c) 2,2 - dimethylbutanol - 1, class - monohydric alcohols CH2 (OH) - C (CH3 ) 2 - CH2 - CH3
d) pentine - 2, class - alkynes, CH3 - C=C - CH2 - CH3
Task 3.
a) CH4 +2 O2 SO2 +2 N2 OH2 SO4
methane c) C2 H5 HE IS WITH2 H4 + H2 O
b) C2 H6 + CI2 WITH2 H5 CI+ HCIethanol ethylene
ethane chloroethane
Task 4.
a) a qualitative reaction to acetylene is the decolorization of bromine water:
CH = CH +2Br2 = CHBr2 - CHBr2
1,1,2,2 - tetrabromoethane
b) a qualitative reaction to a protein solution is a santo-protein reaction:
protein solution +Cu(Oh) 2 = red solution, reaction for peptide bond and peptide group
Task 5.
Given: Solution:
V(WITH3 H8 ) = 78.2 liters. 1. Find the volume of hydrogen chloride.
78.2 litersVl. - according to the task
WITH3 H8 + CI2 = C3 H7 CI + HCI
Vm= 22.4 l/mol22.4 l. 22.4 l. - according to the equationreactions
V(HCI) - ?
n(HCI) - ? V(HCI) = 78.2* 22.4/22.4 = 78.2l.
2. Find the amount of hydrogen chloride substance
n(HCI) = V/ Vm\u003d 78.2 / 22.4 \u003d 3.5 mol
Answer:V(HCI) = 78.2 l,n(HCI)= 3.5 mol
