Higher Chemistry
Unit 2
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
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
Answer
B.
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
Answer
C.
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
Answer
C.
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
Answer
D.
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
Answer
A.
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
Answer
B.
Higher Chemistry
7.
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
Answer
D.
Higher Chemistry
8.
Unit 2 - Section 4
Aldehydes and Ketones….
Multiple Choice Questions
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
Answer
A.
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
Answer
D.
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
Answer
B.