Carbonyl CompoundMedium

Question

Given below are two statements:

Statement-I : The condensation reaction between ${CH}_{3} - CH = O$ and

under optimum pH will produce

Statement-II : The molecule,

will generate $Ph - CH = O$ in the presence of dilute acid.

In the light of the above statements, choose the correct answer from the options given below:

Options

A.Both Statement-I and Statement-II are true.
B.Both Statement-I and Statement-II are false.
C.Statement-I is true but Statement-II is false.
D.Statement-I is false but Statement-II is true.

Solution

Sol. [Key Concept: Semicarbazide attacks the carbonyl through its more nucleophilic terminal $- {NH}_{2}$; the acetal $Ph - CH(OH)({OCH}_{3})$ hydrolyses in dilute acid to $Ph - CHO$ (statement-II true, statement-I false).]

Statement-I

Hence statement-I is incorrect.

Statement-II

Statement-II is correct.

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