JEE Main 2015 Chemistry question
Two Faraday of electricity is passed through a solution of . The mass of copper deposited at the cathode is: (Atomic mass of Cu = 63.5 amu)
Answer: (3)
Solution
The cathode reaction is , so two Faradays (2 mol of electrons) deposit one mole of copper, i.e. 63.5 g, option (3).