Four faradays of electricity were passwd thru AgNO3, CdSO4.AlCl3 and PbCl4 kept in four vessels using inert electrodes.The ratio of moles of Ag,Cd,  Al and Pb deposited will be.

Dear Student,

Ag+(aq) +   e-        Ag(s)              1 mol = 1F     1 mol                       3F            3 molCd2+(aq) +   2e-     Cd(s)              2 mol = 2F       1 mol                         3F            32 molAl3+(aq) +   3e-        Al(s)              3 mol = 3F       1 molPb4+(aq) +   4e-     Pb(s)              4 mol = 4F       1 mol                         3F            34 mol  Therefore, ratio = 3:32:1:34= 12:6:4:3                    

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