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Tautomerism is exhibited by...

Tautomerism is exhibited by

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
(a). `C_(6)H_(5)-CH=CH-OH hArrC_(6)H_(5)-CH_(2)-CHO` (Aldehydes are more stable than vinyl alcohols)
(b). Does not show tautomerism since its `alpha`-hydrogen is not acidic enoug for migration.

(enol form, i.e., resorcinol is stabilized by resonance energy of the benzene ring)
.
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