Predict respectively 'X' and 'Y' in the following reactions. `Ar–NH_(2)overset(X)toAr-overset(+)NequivN-coverset(-)Ioverset(Y)toAr-CI`

Options

A. `NaNO_(3) "and" CI_(2)`
B. `NaNO_(3)-HCI "and" HCI`
C. `NaNO_(2)-HCI "and" Cu//HCI`
D. `NaNO_(2)-HCI "and" NaNH_(2)`

Answer

C

Explanation

The sequence of reaction is
`Ar-NH_(2)overset(NaNO_(2)-HCl)underset((X))(to)ArN_(2)^(+)Cl^(-)overset(Cu//HCl(Y))(to)Ar-Cl`