Most acidic hydrogen (deprotonation in base) among given carbonyl compounds

This type of question, asked 2 times: 24 Jan 2023, 27 Jan 2024. All 2 questions below, oldest first.

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Question 1
24 Jan 2023
125 $Which will undergo deprotonation most readily in basic medium? (A) (B) (C)$
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Question 2
27 Jan 2024
36 $Which of the following has highly acidic hydrogen?$
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