Match the following

Answer

A-pq; B-pr; C-ps; D-pq

Explanation

`1^(@)` amine `-NaNO_(2)+HC//CHCl_(3)+KOH`
`2^(@)` amine - i) `NaNO_(2)+HCl`, ii) `HNO_(2)` form nitro compound
`3^(@)` amine - salt formation with `HNO_(2)`
`1^(@)` aromatic amine `-NaNO_(2)+HC//CHCl_(3)+KOH`