1.

Which of the following methods of preparation of amines will not give same number of carbon atoms in the chain of amines as in the reactant?

Answer»

Reaction of nitrite with `LiAlH_4`
Reaction of AMIDE with `LiAlH_4`followed by treatment with water
Heating ALKYLHALIDE with POTASSIUM salt of phthalimide followed by hydrolysis
Treatment of amide with bromine in aqueous solution of sodium hydroxide.

Solution :`underset("Amide")(RCONH_2)OVERSET(Br_2 //NaOH)tounderset("Amine with one C-atom less than the amide")(RNH_2)`
Only treatment of amide with `Br_2` in aqueous solution of NaOH wil give an amine with lesser NUMBER of carbon atoms than in the reactant.


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