Cost of Electricity to deposit 8 grams of Oxygen is Rs 200. Cost of Electricity to deposit 24 grams of hydrogen will be
Rs 7200
Rs 1200
Rs 4800
Rs 2400
8 gram of Oxygen =GEW, which requires one Faraday; Thus cost of 1F=Rs 200; GEW of 'H' = 1g; 1 g require Rs 200 24 g require X; X=Rs 4800