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Question

Decreasing order of enol content of the following compound in liquid phase :
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A
a>b>c>d
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B
c>b>a>d
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C
c>b>d>a
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D
b>c>a>d
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Solution

The correct option is A c>b>a>d
order is c > b > a > d
as phenol is aromatic, (100 % enol)
then b have higher enol content because of acidic hydrogen and hydrogen bonding present in enol form.
then a and d.
d is least enolic due to higher stability of ketone.

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