For the same amount of time, silver metal in AgNO3 will be deposited maximum at cathode. When the same quantity of electricity is passed through the aqueous solution of the given electrolyte the amount of metal deposited at cathode is proportional to equivalent weight. The equivalent weight of silver in silver nitrate =169.87 Equivalent weight of zinc in zinc sulphate =143.69g∕eq Equivalent weight of iron in ferric chloride =18.6g∕eq Equivalent weight of nickel in NiCl2=129g∕eq