Give reasons for, ''The colour of mercurous chloride, Hg2 Cl2, changes from white to black when treated with ammonia.''

Question

Give reasons for, ''The colour of mercurous chloride, Hg2 Cl2, changes from white to black when treated with ammonia.'' (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Mercurous chloride changes from white to black when treated with ammonia due to formation of metallic Hg.

Q. Give reasons for, ''The colour of mercurous chloride, $H g_{2} C l_{2}$ , changes from white to black when treated with ammonia.''