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Standard XII
Chemistry
Revisiting Tautomerism
Which of the ...
Question
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.
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Standard XII Chemistry
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