Discussion Forum



1)

 Excess of ammonia  with sodium hypochlorite solution  in presence of glue  or gelatin gives 


A) $NaNH_{2} $

B) $NH_{2}NH_{2}$

C) $N_{2}$

D) $NH_{4}Cl$

Answer:

Option B

Explanation:

 Excess of ammonia  (NH3)  when reacts with sodium hypochlorite solution (NAOCl)  in presence of glue or gelatin gives hydrazine  (NH2.NH2) . This process is known as the Raschig process.

$2NH_{3}+NaOCl\rightarrow N_{2}H_{4}+NaCl+H_{2}O$

 The addition of gelatin or glue suppress the side reaction by complexing with the metal ions and the yield of hydrazine is increased