Q.

Identify B formed in the reaction.                                           [2024]

Cl-(CH2)4-Clexcess NH3ANaOHB+H2O+NaCl

1  
2 H2N-(CH2)4-NH2  
3 ClN+H3-(CH2)4-N+H3Cl-  
4  

Ans.

(2)

In Hoffmann ammonolysis reaction excess of NH3 forms primary amine. Since NH3 is in excess, it replaced both Cl of substrate.