Question

1 Faraday of electricity will liberate 1 g atom of the metal from ______.

Options

• fused NaCl

• aqueous BaCl₂

• aqueous CuSO₄

• aqueous AlCl₃

Answer 1

1 Faraday of electricity will liberate 1 g atom of the metal from fused NaCl.

Explanation:

In fused NaCl, sodium ions (Na⁺) require 1 electron to be reduced to sodium metal. So, 1 Faraday (96,500 C) deposits 1 gram equivalent, which for Na (valency = 1) is equal to 1 gram atom.