Q.

What statement is incorrect for Keto-Enol Tautomerism?

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a

Tautomerism is catalyzed by acid and base.

b

Atomic arrangements are different in tautomerism.

c

Tautomer are present in a dynamic equilibrium state
 

d

Generally, keto form is less stable than the enol form ketones
 

answer is C.

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Detailed Solution

In organic molecules, there exists an equilibrium between the ketone form and the enol form of the molecules which is called “keto-enol” tautomerism. This equilibrium is dynamic in nature and the dominant structure is dependent on different conditions.

In most of the keto-enol tautomeric cases the equilibrium is shifted more towards the keto form indicating that it is the more stable form.

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