Question

State and explain faraday's second law of electrolysis?

Answer 1

Faraday's 2nd law states that when the same quantity of electricity is passed through solutions of different electrolytes,the weight of different substances deposited or liberated at respective electrodes are prportional to their chemical equivalent weights. mathematically,

mass of substance A deposited or liberated / mass of substance B deposited or liberated 

=equivalent weight of A / equivalent weight of B  (W1 / W2 = Z1 / Z2) 

Answer 2

According to Faraday's second law of electrolysis, when the same quantity of electricity is passed through solutions of different electrolytes connected in series, the weights of the substances produced at the electrode's are directly proportional to their equivalent weights.
Ex. For AgNO3 solution and CuSO4 solution connected in series if the same quantity of electricity is passed

Weight of Ag÷ Weight of Cu = Eq. Wt of At ÷ Eq. Wt. Of Cu

Hope this helps