Subject Testing "Alkanes" option 1.
Part A.
A 1. General formula homologous series of alkanes:
A 2. The number of elements in the substance butane is:
1 2. 2 3. 3 4. 4
A 3. Homologues are:
Hexane and hexanal. 2. Hexane and hexene. 3. Butane and pentane. 4. Butane and pentyl.
Etana. 2. Propene. 3. Butadiene. 4. Pentina.
1. Hexane and butane. 2. Cyclobutane and cyclopropane. 3. Butane and 2-methylbutane. 4. Butane and 2-methylpropane.
Etina. 2. Isobutane. 3. Ethena. 4. Cyclopentene.
A 7. The number of carbon atoms in 5.6 liters (n.a.) of propane is:
5 . 10 22 2. 1,5 . 10 23 3. 0,1 . 10 23 4. 4,5 . 10 23
Isobutane. 2. Butadiene -1.3. 3. Propyne. 4. Benzene.
C 3 H 8 2. C 4 H 10 3. C 6 H 6 4. C 5 H 12
A 10. 2-bromo-2-methylbutane interacts with
1. Concentrated sulfuric acid. 2. Nitrogen. 3. Hydrogen chloride. 4. Potassium hydroxide in alcohol solution.
A 11. Volume (in liters, N.S.) of a portion of ethane containing 7.224. 10 23 hydrogen atoms is equal to:
26,88 2. 13,44 3. 4,48 4. 53,2
Sulfates of calcium and manganese (II). 2. Ethane and propane. 3. Silicon and sulfur dioxides.
4. Ethylene and acetylene.
Butanol - 1. 2. Bromethane. 3. Ethan. 4. Ethylene.
A 14. The mass (in grams) of a mixture consisting of 2.24 liters (n.a.) of methane and 1.12 liters (n.a.) of nitrogen is:
1 2. 2,3 3. 3 4. 4,6
A 15. The general formula of the homologous series of cycloalkanes:
Bromethan. 2. Propanol. 3. 1,2 - dibromoethane. 4. 2,2,3,3 - tetramethylethane.
Propane. 2. Butane. 3. Ethan. 4. Ethylene.
A 18. Mass (kg) of carbon tetrachloride obtained from 64 kg of methane with a practical yield of 97.4% is:
600 2. 300 3. 900 4. 1500
CH 3 - CH - CH 2 - CH 3
2 - ethylpropane. 2. 3 - ethyl propane. 3. 3 - methylpentane. 4. 3 - methylbutane.
A 20. The mass of hydrocarbon (in grams) obtained by heating 48 g of 2 - bromobutane with 7.67 g of sodium is:
10 2. 19 3. 38 4.76
Part B.
Hydrogenation reactions.
The presence of π - bonds in the molecule.
Reactions with hydrogen halides.
Combustion in air.
Name General formula
Pentane A C n H 2n+1
Butin B C n H 2n+2
Cyclopropane В C n H 2n
Ethyl G C n H 2n-2
Subject Testing "Alkanes" option 2.
Part A.
For each task of part A, several answers are given, of which only one is correct. Choose the answer that you think is correct. In the answer sheet, under the task number, put a cross in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. The general formula of the homologous series of cycloalkanes:
C n H 2n 2. C n H 2n+2 3. C n H 2n-2 4. C n H 2n-6
A 2. The number of elements in the substance pentane is:
1 2. 2 3. 3 4. 4
A 3. Homologues are:
Hexane and hexanal. 2. Propane and butane. 3. Butane and butene. 4. Butane and pentyl.
A 4. Substitution reactions are typical for:
Ethena. 2. Propina. 3. Butadiene. 4. Pentane.
A 5. Structural isomers are:
1. Hexane and butane. 2. Cyclobutane and cyclopentane. 3. Butane and 2-methylbutane. 4. Pentane and 2 - methylbutane.
A 6. In the molecule of which substance there are no π-bonds:
Etina. 2. Butadiene. 3. Etana. 4. Cyclopentene.
A 7. The number of carbon atoms in 11.2 liters (n.a.) of propane is equal to:
15 . 10 22 2. 9 . 10 23 3. 0,3 . 10 23 4. 4,5 . 10 23
A 8. A hydrocarbon in which the orbitals of all carbon atoms have sp 3 hybridization is
Pentin. 2. Butadiene -1.3. 3. Propane. 4. Benzene.
A 9. The mass fraction of hydrogen will be the largest in the compound:
C 4 H 8 2. C 4 H 10 3. C 6 H 6 4. C 5 H 12
A 10. 2 -chlorine - 2 -methylbutane interacts with
1. Hydrogen chloride. 2. Concentrated sulfuric acid. 3. Nitrogen. 4. Sodium hydroxide in alcohol solution.
A 11. Volume (in liters, N.S.) of a portion of propane containing 3.6. 10 23 hydrogen atoms is equal to:
1,68 2. 13,44 3. 34,48 4. 53,25
A 12. The closest Chemical properties have both substances of the set:
Calcium and iron(II) sulfates. 2. Propane and butane. 3. Silicon and sulfur dioxides.
4. Ethylene and acetylene.
A 13. In the transformation scheme ethanol → X → butane, the substance X is:
Butanol - 1. 2. Ethene. 3. Chloroethane. 4. Ethan.
A 14. The mass (in grams) of a mixture consisting of 1.12 liters (n.a.) of methane and 2.24 liters (n.a.) of nitrogen is:
1,8 2. 2,3 3. 3,6 4. 4,6
A 15. The general formula of the homologous series of alkanes:
C n H 2n+2 2. C n H 2n 3. C n H 2n-2 4. C n H 2n-6
A 16. The reaction of cleavage (elimination) is not typical for:
Chloroethane. 2. 1,2 - dichloroethane. 3. 2,2,3,3 - tetramethylethane. 4. Propanal.
A 17. As a result of the following transformations
C + H 2 → X 1 → X 2 → X 3 → X 4 → X 5 the final product is formed (X 5):
1 - bromobutane. 2. Butane. 3. 2 - bromobutane. 4. 2 - bromine - 2 - methyl propane.
A 18. Mass (kg) of carbon tetrachloride obtained from 32 kg of methane with a practical yield of 94.2% is:
600 2. 290 3. 400 4. 150
A 19. Name the substance according to the international IUPAC nomenclature:
CH 2 - CH - CH 2 - CH 3
1,2 - dimethylbutane. 2. 3,4 - diethylbutane. 3. 3 - methylpentane.
3 - methylbutane.
A 20. The mass of hydrocarbon (in grams) obtained by heating 129 g of chloroethane with 52 g of sodium is:
105 2. 58 3. 38 4.94
Part B.
The answer of part B can be an integer or a sequence of numbers written in a row without spaces and commas, as well as a sequence of letters. Round fractions to a whole number, do not write units of measurement.
B 1. Select and write down, without spaces and commas, signs characteristic of methane:
Hydrogenation reactions.
Tetrahedral shape of the molecule.
The presence of π - bonds in the molecule.
Sp 3 - hybridization of the orbitals of the carbon atom in the molecule.
Reactions with hydrogen halides.
Combustion in air.
B 2. Arrange the substances in order of increasing number of bonds in the molecule, writing down the numbers without spaces and commas:
HCLO 4 2. HNO 2 3. C 3 H 8 4. HBrO 3 5. BCL 3
B 3. In the interaction of ethane with a volume of 44.8 l (n.a.) with nitric acid, nitroethane was obtained with a mass of 102 g and a practical yield (in percent) ……
In 4. Hydrolysis of aluminum carbide (AL 4 C 3) produced methane with a volume of 67.2 liters (n.a.). The mass of aluminum hydroxide formed is (in grams) ......
B 5. Match the bars. In strict accordance with the sequence of numbers in the first column, write down the letters of the selected answers from the second column. Transfer the received sequence of letters to the answer sheet (without numbers, commas and gaps), for example ABCD.
Name General formula
Pentane A C n H 2n+1
Butin B C n H 2n+2
Cyclopropane В C n H 2n
Chemistry test Alkanes with answers for 10th grade students. The control work consists of 3 options in each of 6 tasks.
1 option
1. Structural formula of an alkane:
2. The isomers are:
1) butane and pentane
2) 2-methylbutane and 2,2-dimethylpropane
3) 1,3-dimethylpentane and 2-methylpentane
4) 3,3-dimethylpentane and 2,2-dimethylbutane
3.
A. With an increase in the relative molecular weight of alkanes, the melting and boiling points increase.
B. Methane has a characteristic odor.
1) only A is true
2) only B is true
3) both statements are correct
4) both judgments are wrong
4. In the pentane combustion reaction equation, the coefficient in front of the oxygen formula is:
1) 2
2) 4
3) 6
4) 8
5. Synthesis gas is formed by the reaction between:
1) methane and oxygen
2) methane and chlorine
3) methane and water
4) chloromethane and water
6. Calculate the mass of aluminum carbide Al 4 C 3 that will be required to produce 112 liters (N.O.) of methane if the volume fraction of the yield of the reaction product is 80% of the theoretically possible.
Option 2
1. Molecular formula of alkane:
1) C 4 H 10
2) C 3 H 4
3) C 6 H 6
4) C 5 H 10
2. Substances of the same composition and properties are represented by structural formulas:
3. Propane:
1) has no homologues with fewer carbon atoms
2) is a liquid
3) is a gas at room temperature
4) has a lower relative molecular weight than air
5) has no isomers
6) dissolves in water
4. When 1 mol of methane reacts with 3 mol of chlorine, the following is formed:
1) 1 mol of trichloromethane
2) 1 mol of trichloromethane and 3 mol of hydrogen chloride
3) 1 mol of trichloromethane and 2 mol of hydrogen chloride
4) 3 mol of trichloromethane and 3 mol of hydrogen chloride
5. The dehydrogenation of ethane refers to the reactions:
1) endothermic
2) expansions
3) connections
4) catalytic
5) exothermic
6) non-catalytic
6. Determine the molecular formula of the saturated hydrocarbon, when 1.74 g of which interacts with bromine, 4.11 g of the monobromo derivative is formed.
3 option
1. Structural formula of an alkane:
2. Homologues are substances whose names are:
1) 2-methylpentane and 2-methylbutane
2) 2-methyl propane and butane
3) 2,2-dimethylbutane and 2-methylpentane
4) butane and cyclobutane
3. Are the following statements about the physical properties of alkanes correct?
A. All alkanes are gaseous or liquid substances.
B. Alkanes are highly soluble in water.
1) only A is true
2) only B is true
3) both statements are correct
4) both judgments are wrong
4. During the decomposition of methane not formed:
1) hydrogen
2) ethylene
3) acetylene
4) soot
5. Ethane is characterized by reactions:
1) with hydrogen
2) with oxygen
3) with sodium hydroxide solution
5) with bromine
6) with concentrated sulfuric acid
6. Set the molecular formula of dibromoalkane containing 85.11% bromine.
Answers to test in chemistry Alkanes
1 option
1. 4
2. 2
3. 1
4. 4
5. 3
6. 299,52
Option 2
1. 1
2. 3
3. 35
4. 2
5. 124
6. C 4 H 10
3 option
1. 1
2. 1
3. 4
4. 2
5. 25
6. C 2 H 4 Br 2
Subject Testing "Alkanes" option 1.
Part A.
A 1. The general formula of the homologous series of alkanes:
A 2. The number of elements in the substance butane is:
1. 1 2. 2 3. 3 4. 4
A 3. Homologues are:
1. Hexane and hexanal. 2. Hexane and hexene. 3. Butane and pentane. 4. Butane and pentyl.
1. Etana. 2. Propene. 3. Butadiene. 4. Pentina.
1. Hexane and butane. 2. Cyclobutane and cyclopropane. 3. Butane and 2-methylbutane. 4. Butane and 2-methylpropane.
1. Etina. 2. Isobutane. 3. Ethena. 4. Cyclopentene.
A 7. The number of carbon atoms in 5.6 liters (n.a.) of propane is:
1. 5 . 1022 2. 1,5 . 1023 3. 0,1 . 1023 4. 4,5 . 1023
1. Isobutane. 2. Butadiene -1.3. 3. Propyne. 4. Benzene.
1. 1 2. 2,3 3. 3 4. 4,6
A 15. The general formula of the homologous series of cycloalkanes:
1. Bromethane. 2. Propanol. 3. 1,2 - dibromoethane. 4. 2,2,3,3 - tetramethylethane.
1. Propane. 2. Butane. 3. Ethan. 4. Ethylene.
A 18. Mass (kg) of carbon tetrachloride obtained from 64 kg of methane with a practical yield of 97.4% is:
1. 600 2. 300 3. 900 4. 1500
CH3 - CH - CH2 - CH3
1. 2 - ethyl propane. 2. 3 - ethylpropane. 3. 3 - methylpentane. 4. 3 - methylbutane.
A 20. The mass of hydrocarbon (in grams) obtained by heating 48 g of 2 - bromobutane with 7.67 g of sodium is:
1. 10 2. 19 3. 38 4.76
Part B.
1. Hydrogenation reactions.
6. Combustion in air.
1. HCLO4 2. HNO2 3. C3H8 4. HBrO3 5. BCL3
In 4. Hydrolysis of aluminum carbide (AL4C3) produced methane with a volume of 67.2 liters (n.a.). The mass of aluminum hydroxide formed is (in grams) ......
Name General formula
1. Pentane A CnH2n+1
2. Butin B CnH2n+2
3. Cyclopropane B CnH2n
4. Ethyl G CnH2n-2
Subject Testing "Alkanes" option 2.
Part A.
For each task of part A, several answers are given, of which only one is correct. Choose the answer that you think is correct. In the answer sheet, under the task number, put a cross in the box, the number of which corresponds to the number of the answer you have chosen.
A 1. The general formula of the homologous series of cycloalkanes:
1. СnH2n 2. CnH2n+2 3. CnH2n-2 4. CnH2n-6
A 2. The number of elements in the substance pentane is:
1. 1 2. 2 3. 3 4. 4
A 3. Homologues are:
1. Hexane and hexanal. 2. Propane and butane. 3. Butane and butene. 4. Butane and pentyl.
A 4. Substitution reactions are typical for:
1. Ethena. 2. Propina. 3. Butadiene. 4. Pentane.
A 5. Structural isomers are:
1. Hexane and butane. 2. Cyclobutane and cyclopentane. 3. Butane and 2-methylbutane. 4. Pentane and 2 - methylbutane.
A 6. In the molecule of which substance there are no π-bonds:
1. Etina. 2. Butadiene. 3. Etana. 4. Cyclopentene.
A 7. The number of carbon atoms in 11.2 liters (n.a.) of propane is equal to:
1. 15 . 1022 2. 9 . 1023 3. 0,3 . 1023 4. 4,5 . 1023
A 8. A hydrocarbon in which the orbitals of all carbon atoms have sp3 hybridization is
1. Pentin. 2. Butadiene -1.3. 3. Propane. 4. Benzene.
A 9. The mass fraction of hydrogen will be the largest in the compound:
1. C4H8 2. C4H10 3. C6H6 4. C5H12
A 10. 2 -chlorine - 2 - methylbutane interacts with
1. Hydrogen chloride. 2. Concentrated sulfuric acid. 3. Nitrogen. 4. Sodium hydroxide in alcohol solution.
A 11. Volume (in liters, N.S.) of a portion of propane containing 3.6. 1023 hydrogen atoms is equal to:
1. 1,68 2. 13,44 3. 34,48 4. 53,25
A 12. Both substances of the set have the closest chemical properties:
1. Calcium and iron(II) sulfates. 2. Propane and butane. 3. Silicon and sulfur dioxides.
4. Ethylene and acetylene.
A 13. In the transformation scheme ethanol → X → butane, the substance X is:
1. Butanol - 1. 2. Ethene. 3. Chloroethane. 4. Ethan.
A 14. The mass (in grams) of a mixture consisting of 1.12 liters (n.a.) of methane and 2.24 liters (n.a.) of nitrogen is:
1. 1,8 2. 2,3 3. 3,6 4. 4,6
A 15. The general formula of the homologous series of alkanes:
1. CnH2n+2 2. CnH2n 3. CnH2n-2 4. CnH2n-6
A 16. The reaction of cleavage (elimination) is not typical for:
1. Chloroethane. 2. 1,2 - dichloroethane. 3. 2,2,3,3 - tetramethylethane. 4. Propanal.
A 17. As a result of the following transformations
C + H2 → X1 → X2 → X3 → X4 → X5 the final product (X5) is formed:
1. 1 - bromobutane. 2. Butane. 3. 2 - bromobutane. 4. 2 - bromine - 2 - methyl propane.
A 18. Mass (kg) of carbon tetrachloride obtained from 32 kg of methane with a practical yield of 94.2% is:
1. 600 2. 290 3. 400 4. 150
A 19. Name the substance according to the international IUPAC nomenclature:
CH2 - CH - CH2 - CH3
1. 1,2 - dimethylbutane. 2. 3,4 - diethylbutane. 3. 3 - methylpentane.
4. 3 - methylbutane.
A 20. The mass of hydrocarbon (in grams) obtained by heating 129 g of chloroethane with 52 g of sodium is:
1. 105 2. 58 3. 38 4.94
Part B.
The answer of part B can be an integer or a sequence of numbers written in a row without spaces and commas, as well as a sequence of letters. Round fractions to a whole number, do not write units of measurement.
B 1. Select and write down, without spaces and commas, signs characteristic of methane:
1. Hydrogenation reactions.
2. Tetrahedral shape of the molecule.
3. The presence of π-bonds in the molecule.
4. Sp3 - hybridization of the orbitals of the carbon atom in the molecule.
5. Reactions with hydrogen halides.
6. Combustion in air.
B 2. Arrange the substances in order of increasing number of bonds in the molecule, writing down the numbers without spaces and commas:
2. HCLO4 2. HNO2 3. C3H8 4. HBrO3 5. BCL3
B 3. In the interaction of ethane with a volume of 44.8 l (n.a.) with nitric acid, nitroethane was obtained with a mass of 102 g and a practical yield (in percent) ……
In 4. Hydrolysis of aluminum carbide (AL4C3) produced methane with a volume of 67.2 liters (n.a.). The mass of aluminum hydroxide formed is (in grams) ......
B 5. Match the bars. In strict accordance with the sequence of numbers in the first column, write down the letters of the selected answers from the second column. Transfer the received sequence of letters to the answer sheet (without numbers, commas and gaps), for example ABCD.
Name General formula
1. Pentane A CnH2n+1
2. Butin B CnH2n+2
3. Cyclopropane B CnH2n
STATE BUDGET EDUCATIONAL INSTITUTION
SECONDARY EDUCATIONAL SCHOOL № 336
NEVSKY DISTRICT OF SAINT PETERSBURG
Alkanes, Cycloalkanes
development of a control test in chemistry
for grade 10
Designed by:
Samokhvalov Andrey Sergeevich ,
Biology and chemistry teacher
GBOU secondary school №336 Nevsky district
St. Petersburg
2015
TEST CONTROL ON THEMES: "ALKANES", "CYCLOALKANES"
one). Bonds in an alkane molecule:
a). double; b). triple; in). one and a half; G). single?
2). Specify the molecular formula of ethane:
a). C 8 H 18 ; b). C6H6; in). C6H5CH3; G). C2H6?
3). Specify the formula of a substance belonging to the class "Alkanes":
a). C4H10; b). C6H12; in). C6H6; G). C 13 H 26 ?
four). The general formula for the homologous series of alkanes is:
a). C n H 2 n ; b). C n H 2 n - 2; in). C n H 2 n - 6; G). C n H 2 n + 2 ?
5). Natural gas contains mainly:
a). propane; b). butane; in). methane; G). hydrogen?
6). Which hydrocarbon is a homologue of butane:
a). ethylene; b). benzene; in). pentane; G). isobutane?
7). The methane molecule has the form:
a). cone; b). Cuba; in). pyramids; G). tetrahedron?
eight). Alkanes are characterized by hybridization:
a). sp3; b). sp; in). sp2; G). sp4?
9). The angle between carbon atoms in alkane molecules is:
a). 120°; b). 109°; in). 90° ; G). 110°?
ten). The radical is:
a). a group of atoms with unpaired electrons;
b). a group of atoms that differ from methane by - CH 2 -;
in). a group of atoms having a positive charge;
G). a group of atoms called a functional group?
eleven). The formulas of only alkanes are written in the series:
a). C 3 H 6 , C 2 H 4 , C 6 H 14 ; b). C 4 H 10 , C 2 H 6 , C 3 H 8 ;
in). C 2 H 2 , C 3 H 8 , C 6 H 6 ; G). C 6 H 6 , C 4 H 8 , C 2 H 6 ?
12). The reaction leading to the lengthening of the carbon chain is:
a). Wurtz reaction; b). Konovalov's reaction;
in). alkane isomerization reaction; G). alkene hydrogenation reaction?
13). During the thermal decomposition of methane with its simultaneous heating to 1500 ° C and cooling with water, the following are formed:
a). C and H 2 ; b). C 2 H 2 and H 2; in). CO 2 and H 2 ; G). CO and H 2?
fourteen). Alkanes are characterized by isomerism: a). multiple bond positions; b). carbon skeleton; in). geometric; G). position of the functional group? fifteen). For alkanesnot typical reaction: a). polymerization; b). isomerization; in). thermal decomposition; G). substitution?
16). The molar mass of a cycloalkane containing 6 carbon atoms in one molecule is equal in g / mol:
BUT). 70; b). 48; in). 86; G). 84?
17). Cyclohexane is not characterized by the reaction:
a). accessions; b). isomerization; in). substitution; G). burning?
eighteen). What bond is typical for alkanes and cycloalkanes:
a). ionic; b). covalent non-polar; in). hydrogen; G). covalent polar?
19). The sum of all coefficients in the cyclopropane combustion reaction equation is:
BUT). eleven; b). fifteen; in). 23; G). 25?
twenty). Under the action of metallic zinc (when heated) on 1,5-dibromopentane, one obtains:
a). cyclohexane; b). pentane; in). methylcyclopentane; G). cyclopentane?
ANSWERS
EVALUATION CRITERION OF THE TEST CONTROL
"5" - 17 - 19 CORRECT ANSWERS;
"4" - 14 - 16 CORRECT ANSWERS;
"3" - 9 - 13 CORRECT ANSWERS;
"2" - 8 AND LESS CORRECT ANSWERS.
BIBLIOGRAPHY
Anisimova K.A., Koltsova A.M. Chemistry tests for grades 8-11, Ivanovo: IPKiPPK, 2013. - 268 p.
Gara N.N., Zueva M.V. Collection of tasks for conducting intermediate certification: 8 - 11 grades: A book for the teacher. – M.: Enlightenment, 2013. – 368 p., illustration.
Surovtseva R.P., Guzey L.S., Ostanniy N.I., Tatur A.O. Chemistry tests for grades 10-11: Teaching aid. – M.: Bustard, 2013. – 126 p., illustration.
Chunikhina L.L. 500 chemistry tests for grades 10-11 (for independent work at school and at home). – M.: Publishing school, 2012. – 86 p.
Test on the topic: "Alkanes"
2 students for 14 questions
1. The first representative of the alkane series is called:
a) butane; b) propane; c) octane; d) methane.
2. General formula of alkanes:
a) C n H2 n; b) C n H2 n+2 ; c) C n H2 n-2; d) C n H n .
3. The carbon atoms in alkanes are in the state:
a) sp- hybridization;
b) pp- hybridization;
in) sp 3 - hybridization;
d) in a non-hybrid state.
4. The bond angle in alkanes is:
a) 109°28"; b) 180°; c) 90°; d) 270°.
5. The methane molecule has the structure:
a) octahedral; b) planar;
c) tetrahedral; d) hexagonal.
6. Bonds in an alkane molecule:
a). double; b). triple;
in). one and a half; G). single.
7. Each subsequent representative of the homologous series of organic compounds differs from the previous one by a homologous difference equal to:
a) CH; b) CH 3 ; c) CH 4 ; d) CH 2 .
8. Natural gas contains mainly:
a). propane; b). butane; in). methane; G). hydrogen.
9 . The radical is:
a). a group of atoms with unpaired electrons;
b). a group of atoms that differ from methane by - CH 2;
in). a group of atoms having a positive charge;
G). a group of atoms called a functional group.
10. To give a name to a radical, it is necessary to replace -an in the name of an alkane with:
a) -in; b) -yl; c) -en; d) -diene.
11. Which of the following substances are isomers?
1) CH 3 - (CH 2) 5 -CH 3; 2) CH 3 -CH (CH 3) - C (CH 3) 2 -CH 3;
3) CH 3 -C (CH 3) 2 -CH 3; 4) CH 3 -CH (CH 3) - CH (CH 3) - CH 3.
a) 1 and 2; b) 1 and 4; c) 2 and 4; d) 3 and 4.
12. Which hydrocarbon is a homologue of butane:
a). ethylene; b). benzene; in). pentane; G). isobutane.
13. The substance CH 3 - CH (CH 3) - CH (CH 3) - CH 3 is called:
a) 2,3,4-trimethyloctane; b) n-hexane;
c) 2,3-dimethylbutane; d) 3,4-dimethylpentane.
14. The seventh representative of a number of alkanes is called: a) octane; b) nonane;
c) dean; d) heptane.
15 . Alkanes are characterized by isomerism:
a). multiple bond positions;
b). carbon skeleton;
in). geometric;
G). functional group positions
16. To name a branched hydrocarbon, you first need to:
a) choose the longest chain of carbon atoms;
b) indicate the names of the radicals;
c) indicate belonging to the class of substances;
d) indicate the location of the radicals.
17. Substances CH 3 -CH 3 and CH 3 -CH 2 -CH 3 are:
a) isomers; b) homologues;
c) allotropic modifications;
d) radicals.
18. Gaseous alkanes are:
a) CH 4, C 4 H 10, C 10 H 22;
b) C 3 H 8, C 2 H 6, C 4 H 10;
c) C 6 H 14, C 5 H 12, C 5 H 10;
d) C 7 H 16, C 6 H 14, C 10 H 22.
19. Reaction
2CH 3 I + 2Na = 2NaI + C 2 H 6
bears the name:
a) N.N. Zinina; b) A.M. Butlerova;
c) Sh.A. Wurtz; d) D.I. Mendeleev.
20. Pentane formula:
a) C 4 H 10; b) C 5 H 10; c) C 5 H 12; d) C 10 H 22.
21. Formula C 2 H 5 corresponds to:
a) ethyl radical; b) dean;
c) ethane; d) butane.
22. The interaction of methane with chlorine is the reaction:
a) expansions; b) connections;
c) exchange; d) substitution.
23. Formula of carbon tetrachloride:
a) CCl 4 ; b) CHCl 3 ; c) CH 2 Cl 2; d) CH 3 Cl.
24. Choose a free radical reaction from the following reactions:
a) CH 4 → C + 2H 2;
b) C 2 H 5 OH + HBr → C 2 H 5 Br + H 2 O;
c) CH 4 + Br 2 → C H 3 Br + H Br;
d) CH 4 + H 2 O → CO + 3H 2.
25. Methane monochlorination product:
a) CH 2 Cl 2; b) CHCl 3 ; c) CCl 4 ; d) CH 3 Cl.
26. During the thermal decomposition of methane, with its simultaneous heating to 1500 ° C and cooling with water, the following are formed:
a). C and H 2 ; b). C 2 H 2 and H 2; in). CO 2 and H 2 ; G). CO and H 2
27. For alkanes not typical reaction :
a). polymerization; b). isomerization;
in). thermal decomposition; G). substitution?
28. The sum of all coefficients in the methane combustion reaction equation is:
a). 2; b).4; at 6; G). eight?
Evaluation criteria:
14 points "5"
11- 13 points "four"
7-10 points "3"
