Assertion : Alkyl isocyanides in acidified water give alkyl formamides.
Reason : In isocyanides, carbon first act as a nucleophile and then as electrophile.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion
B. If both assertion and reason are true but reason is not the correct explanation of the assertion
C. If assertion is true but reason is false
D. If assertion is false but reason is true.

Answer

A

Explanation

`R-N^(+)=-C^(-)overset(H^(+))rarrR-N^(+)=CHoverset(H_(2)Orarr`

In the first step due to partial negative charge on carbon it acts as nucleophile and therefore attacked by`H^(+)`of the acid ,Once it acquires positive charge ,it becomes alectrophile as is shown in the next step.