1. Higher Chemistry Unit 2 Section 2 Hydrocarbons
Multiple Choice Questions
This is designed to be used by teachers to help students develop skills in answering multiple choice questions.

2. 1. The general formula for the alkanes is
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
1. The general formula for the alkanes is
A. CnH2n
B. CnH2n+2
C. CnH2n-2
D. CnHn
Answer

3. 2. The general formula for the alkenes is
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
2. The general formula for the alkenes is
A. CnH2n
B. CnH2n+2
C. CnH2n-2
D. CnHn
Answer

4. 3. The general formula for the alkynes is
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
3. The general formula for the alkynes is
A. CnH2n
B. CnH2n+2
C. CnH2n-2
D. CnHn
Answer

5. Answer 4. Which statement about benzene is correct?
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
4. Which statement about benzene is correct?
A. Benzene is an isomer of cyclohexane
B. Benzene reacts with bromine solution as if it
is unsaturated
C. The ratio of carbon to hydrogen atoms in
benzene is the same as in ethyne
D. Benzene undergoes addition reactions more readily than hexene
Answer

6. Answer 5. The process of catalytic cracking involves using
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
5. The process of catalytic cracking involves using
A. an aluminium catalyst to produce smaller hydrocarbons
B. an aluminium catalyst to produce larger hydrocarbons
C. an aluminium oxide catalyst to produce smaller hydrocarbons
D. an aluminium oxide catalyst to produce larger hydrocarbons
Answer

7. 6. How many isomers are there of pentane? A. 1 B. 2 C. 3 D. 4
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
6. How many isomers are there of pentane?
A. 1
B. 2
C. 3
D. 4
Answer

8. 7. How many other unsaturated isomers are there of pent-1-ene?
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
7. How many other unsaturated isomers are there of pent-1-ene?
A. 1
B. 2
C. 3
D. 4
Answer

9. 8. How many cyclic isomers are there of pentene? A. 1 B. 2 C. 3 D. 4
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
8. How many cyclic isomers are there of pentene?
A. 1
B. 2
C. 3
D. 4
Answer

10. A. 2,2-dimethyl, 3, 3-dimethylbutane B. 3-ethylpentane
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
9. Which hydrocarbon has a molecular formula different from that of the other three?
A. 2,2-dimethyl, 3, 3-dimethylbutane
B. 3-ethylpentane
C. 2,3-dimethylpentane
D. 2,3-dimethyl,3-methylbutane
Answer

11. 10. Which hydrocarbon has the same formula mass as
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
10. Which hydrocarbon has the same formula mass as
3,3-dimethylbut-1-ene?
A. CH3C(CH3)2CH2CH3
B. CH2C(CH3)CH2CH3
C. CH2C(CH3)CH2CH2CH3
D. CH3CH(CH3)CH(CH3)2
Answer

12. B. 1. The general formula for the alkanes is B. CnH2n+2 C. CnH2n-2
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
1. The general formula for the alkanes is
A. CnH2n
B. CnH2n+2
C. CnH2n-2
D. CnHn B.
Answer

13. A. 2. The general formula for the alkenes is B. CnH2n+2 C. CnH2n-2
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
2. The general formula for the alkenes is
A. CnH2n
B. CnH2n+2
C. CnH2n-2
D. CnHn A.
Answer

14. C. 3. The general formula for the alkynes is B. CnH2n+2 C. CnH2n-2
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
3. The general formula for the alkynes is
A. CnH2n
B. CnH2n+2
C. CnH2n-2
D. CnHn C.
Answer

15. C. Answer 4. Which statement about benzene is correct?
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
4. Which statement about benzene is correct?
A. Benzene is an isomer of cyclohexane
B. Benzene reacts with bromine solution as if it
is unsaturated
C. The ratio of carbon to hydrogen atoms in
benzene is the same as in ethyne
D. Benzene undergoes addition reactions more readily than hexene C.
Answer

16. C. Answer 5. The process of catalytic cracking involves using
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
5. The process of catalytic cracking involves using
A. an aluminium catalyst to produce smaller hydrocarbons
B. an aluminium catalyst to produce larger hydrocarbons
C. an aluminium oxide catalyst to produce smaller hydrocarbons
D. an aluminium oxide catalyst to produce larger hydrocarbons C.
Answer

17. 6. How many isomers are there of pentane? A. 1 B. 2 C. 3 D. 4
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
6. How many isomers are there of pentane?
A. 1
B. 2
C. 3
D. 4 C.
Answer

18. D. 7. How many other unsaturated isomers are there of pent-1-ene? A. 1
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
7. How many other unsaturated isomers are there of pent-1-ene?
A. 1
B. 2
C. 3
D. 4 D.
Answer

19. 8. How many cyclic isomers are there of pentene? A. 1 B. 2 C. 3 D. 4
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
8. How many cyclic isomers are there of pentene?
A. 1
B. 2
C. 3
D. 4 D.
Answer

20. Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
9. Which hydrocarbon has a molecular formula different from that of the other three?
A. 2,2-dimethyl, 3, 3-dimethylbutane
B. 3-ethylpentane
C. 2,3-dimethylpentane
D. 2,3-dimethyl,3-methylbutane A.
Answer

21. C. 10. Which hydrocarbon has the same formula mass as
Higher Chemistry Unit 2 - Section 2 Hydrocarbons Multiple Choice Questions
10. Which hydrocarbon has the same formula mass as
3,3-dimethylbut-1-ene?
A. CH3C(CH3)2CH2CH3
B. CH2C(CH3)CH2CH3
C. CH2C(CH3)CH2CH2CH3
D. CH3CH(CH3)CH(CH3)2 C.
Answer