Aqueous copper sulphate solution and aqueous silver nitrate solution are electrolysed by 1 ampere current for 10 minutes in separate electrolytic cells. Will the mass of copper and silver deposited on the cathode be same of different? Explain your answer.

Explanation

Different masses of Cu and Ag will be deposited at cathode. According to Faraday,s second law of electrolysis amount of different substance liberated by same quantity or electricity passes through electrolyte solution is directly proportional to their chemcial equivalent weight.
`(W_(1))/(W_(2))=(E_(1))/(E_(2))`
where, `E_(1)` and `E_(2)` have different values depending upon number of electrons required to reduce the metal ion. thus, massess of `Cu` and Ag deposited will be different.