Question

Tautomerism is not shown by
(A) CH3COCH2CN
(B) HCN
(C) CH3CH=NOH
(D) CH3CN

Pls explain ur answer

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Answer 1

Answer:

1) Alkaline Water Ionizer

2) Hydrogen cyanide

Answer 2

Answer:

Tautomerism is not shown by

(A) CH3COCH2CN✔️✔️✔️✔️

(B) HCN

(C) CH3CH=NOH

(D) CH3CN

Explanation

Presence of α-hydrogen atom is a necessary condition for tautomerism. Here in benzaldehyde, there is no alpha hydrogen atom present in the compound. Thus, it does not show tautomerism.