Class 12 Chemistry · Chapter 7 · Test 1
Aldehydes and Ketones
45 MCQs
45 questions · 40 min · 45 marks
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Sample questions
The first 5 of 45. Try each one, then tap to see the answer.
Question 1
Which of the following compounds is a ketone?
- ACH3COCH3
- BCH3CH2CHO
- CCH3COOH
- DCH3CH2OH
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Answer: A
Propanone has the C=O group bonded to two carbon atoms.
Question 2
The functional group present in aldehydes and ketones is the:
- AHydroxyl group
- BCarboxyl group
- CCarbonyl group (C=O)
- DAmino group
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Answer: C
Aldehydes and ketones are the two classes that contain the carbonyl group.
Question 3
Which is the general formula of aldehydes?
- AR-CO-R
- BR-CHO
- CR-COOH
- DR-O-R
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Answer: B
An aldehyde has the carbonyl group bonded to at least one hydrogen atom.
Question 4
The smell and taste of bitter almond is due to:
- ABenzaldehyde
- BPropanone
- CEthanal
- DMethanal
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Answer: A
Benzaldehyde is responsible for the smell of bitter almond.
Question 5
Which ketone is found in nail polish removers?
- ABenzaldehyde
- BMethanal
- CEthanal
- DPropanone (acetone)
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Answer: D
Acetone (propanone) is the most common ketone and is used in nail polish removers.
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