Which of the following is a simple ketone

The same question, asked 2 times: 15 May 2023 S2, 13 May 2024 S2. Every wording below, oldest first.

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Question 1
15 May 2023 S2
69 $Which of the following is a simple ketone?$
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Question 2
13 May 2024 S2
87 $Which among the following is a simple ketone?$
Tap an option to check your answer.