Which of the following mathermatical relations represents Faraday's second law of electrolysis?

Options

A. `m_(1)E_(1) = m_(2)E_(2) = m_(3)E_(3) =` ... = constant
B. `m_(1)//A_(1) = m_(2)//A_(2) = m_(3)//A_(3) =` ... = constant
C. `m_(1)//M_(1) = m_(2)//M_(2) = m_(3)//M_(3) =` ... = constant
D. `m_(1)//E_(1) = m_(2)//E_(2) = m_(3)//E_(3) =` ... = constant

Answer

D

Explanation

Faraday's second law states that the masses of dif-ferent substances deposited or liberated by the same quantity of electricity passing through the electrolyte solution are proportional to their chemical equivalent masses (Atomic mass of metal `÷` number of electrons required to reduce the cation). Thus
`(m_(1))/(E_(1)) = (m_(2))/(E_(2)) = ...`