Solution:
Option (iii) is the answer.
Reason:
To prepare a 1° amine from an alkyl halide with simultaneous addition of one 
group in the carbon chain, the reagent used as a source of nitrogen is ___________.
(i) Sodium amide, NaNH2
(ii) Sodium azide, NaN3
(iii) Potassium cyanide, KCN
(iv) Potassium phthalimide
group in the carbon chain, the reagent used as a source of nitrogen is ___________. (i) Sodium amide, NaNH2
(ii) Sodium azide, NaN3
(iii) Potassium cyanide, KCN
(iv) Potassium phthalimide
To prepare a 1° amine from an alkyl halide with simultaneous addition of one group in the carbon chain, the reagent used as a source of nitrogen is ___________.
(i) Sodium amide, NaNH2
(ii) Sodium azide, NaN3
(iii) Potassium cyanide, KCN
(iv) Potassium phthalimide
group in the carbon chain, the reagent used as a source of nitrogen is ___________. (i) Sodium amide, NaNH2
(ii) Sodium azide, NaN3
(iii) Potassium cyanide, KCN
(iv) Potassium phthalimide