1.

In order to prepare 1^(@) amine from an alkyl halide with simultaneous addition of one CH_(2) group in the carbon chain, the reagent used as source of nitrogen is

Answer»

Sodium amide, `NaNH_(2)`
Sodium azide, `NaN_(3)`
Potassium cyanide, KCN
Potassium PHTHALIMIDE, `C_(6)H_(5)(CO)_(2)N^(-)+K^(+)`

Solution :CYANIDES on reducing give `1^(@)` AMINES with one more `CH_(2)` GROUP, i.e.,
`R-Xunderset(-KX)overset(KCN)to R-CN overset(Na//C_(2)H_(5)OH)to R-CH_(2)NH_(2)`


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