Question

Write balanced chemical equations for each of the following :
(i) When excess of ammonia is treated with chlorine.
(ii) An equation to illustrate the reducing nature of ammonia.

Answer 1

(i) Here the ammonia is taken in excess ;

$8N{H}_3+3C{l}_2\to 6N{H}_{4}Cl+N_2$

(ii) Ammonia reduces $CuO$ to $Cu$. The oxidation state of $Cu$ changes from +2 to 0 by gain of electrons.

$3CuO+2N{H}_3\stackrel{\Delta }{\to }3Cu+N_2+3H_{2}O$