Which among the given molecules can exhibit tautomerism ?

Both I and II

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Both II and III

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III only

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Both I and III

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Solution

The correct option is C III only

α-Hydrogen at bridge carbon never participates in tautomerism. Thus, only (III) exhibits tautomerism.

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Which among the given molecules can exhibit tautomerism ?

The correct option is C III only α-Hydrogen at bridge carbon never participates in tautomerism. Thus, only (III) exhibits tautomerism.

The correct option is C III only

α-Hydrogen at bridge carbon never participates in tautomerism. Thus, only (III) exhibits tautomerism.