The major end product `B` in the reaction
`C_(6)H_(5)CH_(2)Br overset(AgNO_(2))rarrA underset(2.H_(3)O^(+))overset(1.LiAIH_(4))rarrB` is .

Options

A. `(C_(6)H_(5)CH_(2))_(2)NH`
B. `C_(6)H_(5)CH_(2)NH_(2)`
C. `C_(6)H_(5)CH_(2)NHOH`
D. `C_(6)H_(5)CH=NOH`

Answer

B

Explanation

First step yields nitroalkane which on reduction yields a primary amine
Nitroalkanes are obtained when we heat an alky1 halide with silver nitrite in agueous ethanolic solution
`RX + AgNO_(2)rarrRNO_(2)+RONO+AgX` This method is only useful for the preparation of primary nitroalkanes On account of competing elimination reaction the yield is about `15%` with sec-halides and `0-5%` with t-halides the yield decreases from primary to tertiary halides .