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JEE Main levelSingle correct optionDifficulty 2 of 3co054

An equimolar mixture of calcium ethanoate and calcium methanoate (formate) is dry distilled. The carbonyl product that is formed from the cross-coupling is

Apropanone
Bpropanal
Cethanal
Dmethanal

Answer: C

Dry distillation of two different calcium salts gives

R - CO - R^{'}

by loss of

CaCO X_{3}

. With one formate,

R^{'} = H

, so

CH X_{3} COO X^{-}

and

HCOO X^{-}

give

CH X_{3} CHO

.

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