Question

The electric charge for electrode deposition of 1gm. Equivalent of a substance is:

• A. 96,500 coulombs
• B. one ampere per sec
• C. one ampere for one hour
• D. charge in faradays

Answer 1

The correct option is A 96,500 coulombs

According to Faraday's laws, for deposition of 1 gm of an equivalent weight of a substance, amount of charge required is equal to the charge on one mole of electrons.

i.e., the Electric charge required = Electric charge on one mole of electrons

= Charge on one electron x Avagadro's number

= $1.6\times {10}^{-19}\times 6.023\times {10}^{23}$

= 96500 C/mol