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.
Douglas Racey, Waid Academy, Anstruther, Fife, Scotland

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

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

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

5. C. Answer 4. Which statement about benzene is correct?
Higher Chemistry Unit Section 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

6. C. The process of catalytic cracking involves using Answer
Higher Chemistry Unit Section Hydrocarbons Multiple Choice Questions
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

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

8. D. 7. How many other unsaturated isomers are there of pent-1-ene? A. 1
Higher Chemistry Unit Section 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

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

10. 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. 2,2,3,3-tetramethylbutane
B. 3-ethylpentane
C. 2,3-dimethylpentane
D. 2,2,3-trimethylbutane A.
Answer

11. C. 10. Which hydrocarbon has the same formula mass as
Higher Chemistry Unit Section 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