1. Higher Chemistry Unit 2 Multiple Choice Questions
Section 4 - Aldehydes & Ketones
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. Answer B. 3-methylpentan-2-one C. 2,2-dimethylbutan-1-ol
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
1. Which of the following is an isomer of hexanal?
A. 2-methyl butanal
B. 3-methylpentan-2-one
C. 2,2-dimethylbutan-1-ol
D. 3-ethylpentanal B.
Answer

3. C. 2. Which of the following cannot be classed as oxidation?
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
2. Which of the following cannot be classed as oxidation?
A. CH3CH2OH  CH3CHO
B. CH3CH(OH)CH3  CH3COCH3
C. CH3COCH3  CH3CH(OH)CH3
D. CH3CH2OH + O2  CO2 + H2O C.
Answer

4. C. A. 2-methyl butan-2-ol B. pentan-1-ol C. 3-methyl hexan-2-ol
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
3. Which alkanol will produce a ketone on oxidation using acidified potassium dichromate?
A. 2-methyl butan-2-ol
B. pentan-1-ol
C. 3-methyl hexan-2-ol
D. 2-methyl propan-2-ol C.
Answer

5. D. 4. The alcohol shown below will B. oxidise to form a ketone
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
4. The alcohol shown below will
A. oxidise to form an aldehyde
B. oxidise to form a ketone
C. oxidise to form an aldehyde and a ketone
D. not oxidise D.
Answer

6. Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones…
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
5. Oxidation of 4-methylpentan-2-ol to the corresponding ketone results in the alcohol
A. losing 2g per mole
B. gaining 2g per mole
C. gaining 16g per mole
D. not changing in mass A.
Answer

7. B. Answer B. a colour change from blue to red/orange
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
6. When propanal is heated with Fehling’s solution there is
A. a colour change from green to orange
B. a colour change from blue to red/orange
C. a negative test with Tollen’s reagent
D. no colour change B.
Answer

8. D. Answer B. a colour change from blue to red/orange
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
When butanone is heated with Fehling’s solution there is
A. a colour change from orange to green
B. a colour change from blue to red/orange
C. a silver mirror formed
D. no colour change D.
Answer

9. Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones…
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
8. When the vapour of liquid X is passed over hot copper(II)oxide, a reaction occurs and the vapour produced gives an orange precipitate with Fehling’s solution. X could be
A. propan-1-ol
B. propan-2-ol
C. propanal
D. propanone A.
Answer

10. Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones…
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
9. Butan-1-ol is converted to butanal by warming it with potassium dichromate acidified with sulphuric acid. The purpose of the acidified dichromate is to
A. reduce the alcohol
B. dehydrate the alcohol
C. hydrate the alcohol
D. oxidise the alcohol D.
Answer

11. B. 10.Which compound is formed by the oxidation of propan-2-ol
Higher Chemistry Unit 2 - Section 4 Aldehydes and Ketones… Multiple Choice Questions
10.Which compound is formed by the oxidation of propan-2-ol
A. CH3CH2CHO
B. CH3COCH3
C. CH3CH2COOH
D. CH3CH2CH2OH B.
Answer