${10}^5$ coloumb charge liberated 1 gm silver (Ag). If the charge is doubled
then the amount of liberated Ag will be:

4.5 g of aluminium (at. mass = 27 amu) is deposited at cathode from Al³⁺ solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from H⁺ ions in solution by the same quantity of electric charge will be: