1.

Alkyl cyanides undergo Stephen reduction to produce

Answer»

Aldehyde
Secondary amine
Primary amine
Amide

Solution :When a solution of alkyl cyanides in ether is reduced with stannous chloride and hydrochloric acid at room TEMPERATURE, imine hydrochloric is obtained which on subsequent hydrolysis with boiling water, FORMS an aldehyde (Stepthen's reduction).
`R-C-=Nunderset(2(H))OVERSET(SnCl_(2)//HCL)rarrRCH=NH.HCloverset(H_(2)O)rarrRCHO`


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