Cell$-\mathrm{I}$ containing a solution of mercuric perchlorate $\mathrm{Hg}{({\mathrm{ClO}}_{\mathrm{4}}\mathrm{)}}_{\mathrm{2}}$,

Cell$-\mathrm{II}$ containing a solution of mercuric nitrate $\mathrm{Hg}{({\mathrm{NO}}_{\mathrm{3}}\mathrm{)}}_{\mathrm{2}}$ ,

Cell$-\mathrm{III}$ containing a solution of mercurous perchlorate ${\mathrm{Hg}}_{\mathrm{2}}{({\mathrm{ClO}}_{\mathrm{4}}\mathrm{)}}_{\mathrm{2}}$ 

When these cells were connected in such a way, that the same current passed through each of the cells. The amount of mercury deposited, will be the same in