Which of the following has the most acidic hydrogen?
A
3-Hexanone
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B
2,4-Hexanedione
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C
2,5-Hexanedione
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D
2,3-Hexanedione
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Solution
The correct option is B 2,4-Hexanedione (a) (b) (c) (d) Here, (b) has most acidic hydrogen. Since in (b), C-3 is directly attached with two EWG (C=O) groups which make hydrogens at C-3 most acidic.