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HCHO was treated with reagent X. The pro...

HCHO was treated with reagent X. The product formed upon hydrolysis in the presence of an acid gave `C_2H_5OH` .The reagent X is

A

alcoholic KOH

B

alcoholic KCN

C

`CH_3Mgl`

D

aq.KOH

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The correct Answer is:
C
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