Assertion (A) : The charge on one mole of electrons is one Faraday.
Reason (R ) : The quantity of current required to deposit one mole of Mg form `Mg^(2+)` electrolyte solution is two Faradays. The correct answer is

Options

A. Both (A) and ( R) are true and (R ) is the correct explanation of (A).
B. Both ( A) and (R ) are true but ( R) is not the correct explanation of ( A).
C. (A) is correct but ( R) is not correct .
D. (A ) is not correct but ( R) is correct.

Answer

A

Explanation

The quantity of current required to deposit one mole of Mg from `Mg^(2+)` electrolyte solution is two Faradays.
`Mg^(2+)+2e^(-)rarr Mg`
`:. ` Quantity of electricity required =2F Thus two mole of electrons produce one mole of Mg. It can be concluded that if n,c=1 mol electrons are involved in the electricity will liberate one mole of the substance i.e the charge on one mole of electrons is one Faraday.