Mercuric chloride is converted into mercury by :

CHEMISTRY · Single correct · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

Mercuric chloride is converted into mercury by : (1) placing copper metal in aqueous solution of

\text{HgCl}_2

(2) treating aqueous solution of

\text{HgCl}_2

with excess of stannous chloride (3) treating aqueous solution of

\text{HgCl}_2

with

\text{PbCl}_4

solution (4) none of these