Which of the following has the most acidic hydrogen?
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a
3-hexanone
b
2, 4-hexanedione
c
2, 5-hexanedione
d
2, 3-hexanedione
answer is B.
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Detailed Solution
The most acidic hydrogen is the H attached to the C* in (2) as the negative charge on it after removal of proton is extensively delocalized as compared to the all other due to the two carbonyl groups which are adjacent to this carbon.Hence, the correct answer is (2).