Which of the following methods of preparation of amines will not give the same number
of carbon atoms in the chain of amines as in the reactant?
(i) The reaction of nitrite with LiAlH4.
(ii) The reaction of the amide with LiAlH4
followed by treatment with water.
(iii) Heating alkyl halide with potassium salt of phthalimide followed by
(iv) Treatment of amide with bromine in the aqueous solution of sodium hydroxide.
Option (iv) is the answer.