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(a) How will you convert an alkyl halide...

(a) How will you convert an alkyl halide into a primary amine having one more carbon atom than the alkyl halide used ?
(b) How can a carboxylic acid be converted into an amine having one less carbon atom than the carboxylic acid used ?

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Carboxylic acids react with hydrazoic acid `(N_(3)H)` in presence of conc. `H_(2)SO_(4)` to form `1^(@)` amines containing one carbon atom less than the carboxylic acid. For example
`underset("Acetic acid")(CH_(3)COOH)+underset("Hydrazoic acid")(N_(3)H) underset(("Schmidt reaction"))overset(Conc.H_(2)SO_(4),Delta)to underset("Methylamine")(CH_(3)NH_(2))+CO_(2)+N_(2)`
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