**Option 1**

**Task 1**

Break down the formulas of these substances into classes. Construct the formulas for these substances. Give names to the classes.

2,3-dimethylbutane, butene-2, acetylene, 1,3-dichlorobenzene

**Task 2**

Construct one isomer for each possible type of isomerism for this substance: pentane.

Name the isomeric species and the isomers constructed.

**Task 3**

Write down the equations of reactions according to the given schemes. State the types of reactions and the names of all substances.

A) combustion of ethylene

B) first step bromination of ethane

C) hydrobromination of propyne

**Task 4**: How can the two given substances, propylene and propane, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 2**

**Task 1**

Break down the formulas of these substances into classes. Build the formulas for these substances. Give names to the classes.

2-methylpropane, bromobenzene, propyne-2, 2-bromobutene-2

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: pentene.

Give the names of the isomeric species and the isomers constructed.

**Task 3**

Write down the equations of reactions according to the given schemes. Specify the types of reactions and the names of all substances.

A) combustion of acetylene

B) first-stage chlorination of propane

C) bromination of propyne

D) hydration of acetylene

**Task 4**: How to distinguish in a practical way two given substances: isobutene from butane. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 3**

**Task 1**

Break down the formulas of these substances into classes. Build the formulas for these substances. Give names to the classes.

2,2-dimethylhexane, 2-ethylbutene-1, butene-1, ethylbenzene

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: pentadiene.

Name the isomeric species and the constructed isomers.

**Task 3**

Write down the equations of reactions according to the given schemes. Specify the types of reactions and the names of all substances.

A) combustion of ethylbenzene

B) first step bromination of butane

C) chlorination of ethylbenzene

D) polymerization of chloroethane

**Task 4:** How can you practically identify two given substances: butine-2 and butane. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 4**

**Task 1**

Break down the formulas of these substances into classes. Build the formulas for these substances. Give names to the classes.

3-ethylpentane, 2-methylbutene-2, 1,3-dimethylbenzene, hexane-3

**Task 2**

Construct one isomer for each possible type of isomerism for this substance: pentin.

Name the isomeric species and the isomers constructed.

**Task 3**

Write down the equations of reactions according to the given schemes. Specify the types of reactions and the names of all substances.

A) combustion of methylbenzene

B) first step chlorination of butane

C) hydrolysis of calcium carbide

D) benzene bromination

**Task 4: **How can the two given substances, butene-2 and butane, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 5**

**Task 1**

2-methyl-3-ethylpentane, , 2-methylpentene-2, butene-1, methylbenzene

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: butane.

Give the names of the isomeric species and the isomers constructed.

**Task 3**

A) combustion of benzene

B) complete decomposition of ethane

C) Pyrolysis of ethane

D) chlorination of benzene

**Task 4**: How can the two given substances, 3-methylbutene-1 and 3-methylbutane, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 6**

**Task 1**

2,3-dimethyloctane, 4-methylhexene-1, hexane-2, benzene

**Task 2**

Construct one isomer for each possible type of isomerism for this substance: butene.

Give the names of the isomeric species and the isomers constructed.

**Task 3**

Write down the equations of reactions according to the given schemes. State the types of reactions and names of all substances.

A) combustion of decene

B) complete decomposition of propane

C) chlorination of 2-methylbutadiene-1,3

D) nitration of benzene

**Task 4: **How can the two given substances, nonan and nonine, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 7**

**Task 1**

1,1,2-trimethylheptane, 2-ethylpentene-3, decene, heptadiene-2,5

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: butadiene.

Name the isomeric species and the constructed isomers.

**Task 3**

Write down the equations of reactions according to the given schemes. Specify the types of reactions and names of all substances.

A) nonene combustion

B) complete decomposition of butane

C) chlorination of isoprene

D) cracking of dean

**Task 4: **How can the two given substances, nonan and nonen, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 8**

**Task 1**

2,6-dimethylheptane, hesadiene-2,4, 2-methylbutene-2, nonine-4

**Task 2**

Construct one isomer for each possible type of isomerism for this substance: butine.

Give the names of the isomeric species and the isomers constructed.

**Task 3**

Write down the equations of reactions according to the given schemes. State the types of reactions and names of all substances.

A) nonanal combustion

B) catalytic decomposition of propane

C) chlorination of butadiene-1,3

D) cracking of octane

**Task 4:** How can the two given substances, octene and octane, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 9**

**Task 1**

3,3-diethylpentane, butyne-1, heptadiene-2,4, 2-methylbutene-1

**Task 2**

Construct one isomer for each possible type of isomer for this substance: hexane.

Name the isomeric species and the isomers constructed.

**Task 3**

A) decane combustion

B) catalytic decomposition of butane

C) isoprene polymerization

D) cracking of hexane

**Task 4: **How can the two given substances, octane and octane, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 10**

**Task 1**

2,3-dimethylnonane, 3-ethylpentene-2, hexadiene-1,5, pentene-1

**Task 2**

Construct one isomer for each possible type of isomerism for this substance: hexene.

Name the isomeric species and the isomers constructed.

**Task 3**

A) combustion of pentadiene

B) catalytic decomposition of hexane

C) polymerization of 2-methylbutadiene – 1,3

D) isomerization of butane

**Task 4:** How can the two given substances, 2-methylbutene and 2-methylbutane, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 11**

**Task 1**

2-methyl-2-bromopropane, ethine, nonene, pentadiene-1,3

**Task 2**

Construct one isomer for each possible type of isomerism for this substance: hexadiene.

Name the isomeric species and the isomers constructed.

**Task 3**

A) combustion of butadiene

B) catalytic decomposition of pentane

C) polymerization of butadiene-1,3

D) isomerization of pentane

**Task 4:** How can the two given substances, 3-methylpentene and 3-methylpentane, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 12**

**Task 1**

2,3-dibromohexane, 2,3-dimethylbutene-2, propyne, 2-methylbutadiene-1,3

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: hexine.

Give the names of the isomeric species and the isomers constructed.

**Task 3**

A) combustion of propadiene

B) dehydrogenation of propane

C) depolymerization of polyethylene

D) isomerization of hexane

**Task 4:** How can the two given substances, 2-methylpropane and 2-methylpropane, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 13**

**Task 1**

1,2-dichloroethane, 2-chlorobutadiene-1,3, 2,3-dimethylpentene-1, butyne-2

**Task 2**

Construct one isomer for each possible type of isomerism for this substance: heptane.

Name the isomeric species and the constructed isomers.

**Task 3**

Write down the equations of reactions according to the given schemes. Specify the types of reactions and names of all substances.

A) combustion of hexane

B) dehydrogenation of butane

C) polymerization of pentene

D) heptane isomerization

**Task 4:** How can the two given substances, benzene and butene, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 14**

**Task 1**

Tetrachloromethane, 2-methylhexene-2, propadiene-1,2, 4-methylpentene-2,

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: heptene.

Name the isomeric species and the constructed isomers.

**Task 3**

Write down the equations of reactions according to the given schemes. State the types of reactions and names of all substances.

A) combustion of propyne

B) dehydrogenation of pentane

C) polymerization of propene

D) acetylene trimerization

**Task 4:** How can the two given substances, benzene and propyne, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 15**

**Task 1**

3-bromomethane, 2-methylpentene-1, 3-methylbutene-1, butadiene-1,3,

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: heptadiene.

Name the isomeric species and the constructed isomers.

**Task 3**

A) combustion of butine

B) dehydration of ethanol

C) polymerization of ethane

D) iodination of propene

**Task 4:** How can you practically identify two given substances: benzene and ethane. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 16**

**Task 1**

1-bromo-2-methylbutane, 2-methylbutadiene-1,3, heptene-2, 4-ethylhexine-2

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: heptin.

Name the isomeric species and the isomers constructed.

**Task 3**

Write down the equations of reactions according to the given schemes. Specify the types of reactions and names of all substances.

A) combustion of propyne

B) hydrogenation of propene

C) hydration of hexene

D) 1,2 – chlorination of butadiene 1,3

**Task 4:** How can the two given substances, benzene and butene, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 17**

**Task 1**

3-bromo-2-methylbutane, hexene-3, 3-methylbutene-1, propadiene-1,2,

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: octane.

Name the isomeric species and the constructed isomers.

**Task 3**

Write down the equations of reactions according to the given schemes. State the types of reactions and the names of all substances.

A) combustion of pentene

B) hydrogenation of butene

C) hydration of pentene

D) 1,4-chlorination of butadiene

**Task 4**: How can the two given substances, benzene and propene, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 18**

**Task 1**

2-bromo-2-methylbutane, pentadiene-2,3, butene-1, pentene-2,

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: octene.

Name the isomeric species and the isomers constructed.

**Task 3**

A) combustion of butene

B) hydrogenation of propene

C) hydration of ethene

D) dehydrogenation of 2-methylbutane

**Task 4:** How can the two given substances, benzene and ethene, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 19**

**Task 1**

Break down the formulas of these substances into classes. Build the formulas of these substances: butine and butane. Give names to the classes.

4-bromo-2-methylbutane, penten-1, acetylene, butadiene-1,2

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: octadiene.

Name the isomeric species and the constructed isomers.

**Task 3**

Write down the equations of reactions according to the given schemes. State the types of reactions and the names of all substances.

A) combustion of propene

B) chlorination of ethene

C) hydration of butene

D) dehydrogenation of pentene -2

**Task 4:** How can you practically identify the two given substances: propylene and propane. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 20**

**Task 1**

3,4-dimethylhexane, butene-2, butidien-,3, hexin-3

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: octin.

Name the isomeric species and the isomers constructed.

**Task 3**

A) combustion of hexane

B) chlorination of propene

C) hydrobromination of butene

D) hydrogenation of propyne

**Task 4: **How can you identify in a practical way the two substances given: ethane and ethane. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 21**

**Task 1**

1-ethyl-2-methylpropane, 4-methylpentene-2, propene, pentadiene-1,4

**Task 2**

Construct one isomer for each possible type of isomerism for this substance: nonan.

Name the isomeric species and the isomers constructed.

**Task 3**

A) combustion of pentane

B) butene bromination

C) hydrobromination of ethane

D) dehydrogenation of propene

**Task 4:** How can the two given substances, butene and butane, be recognized in a practical way. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 22**

**Task 1**

2,4-dimethylpentane, hexane-4, ethane, pentadiene-1,3

**Task 2**

Construct one isomer for each possible type of isomerism for this substance: nonene.

Name the isomeric species and the constructed isomers.

**Task 3**

A) combustion of propane

B) bromination of pentene

C) hydrochlorination of butene

D) dehydrogenation of octane

**Task 4: **How can you practically identify two given substances: propane and propane. Write down the equations of the corresponding reactions. Specify the signs of the reactions.

**Option 23**

**Task 1**

3,4-diodehexane, pentadiene-1,2, ethylene, 2-ethyl-5-methylhexane-3,

**Task 2**

Construct one isomer of each possible type of isomerism for this substance: nonine.

Give names to the isomeric species and the constructed isomers.

**Task 3**

A) combustion of ethane

B) iodination of hexene

C) hydrochlorination of ethane

D) polymerization of 2-chlorobutene

**Task 4: **How can you practically identify two given substances: ethane and ethane. Write down the equations of the corresponding reactions. Specify the signs of the reactions.