Four faradays of electricity were passed through AgNO3 (l), CdSO4(l), AlCl3(l), & PbCl4(l) kept in four vessels using inert electrodes. The ratio of moles of Ag, Cd, Al,& Pb deposited will be
A. 12 : 4 : 6 : 3
B.12 : 6 : 4 : 3
Electricity passed through a solution of alcl3 ,13.5gm al is deposited no.of Faraday must be