# The electrochemical equivalent of a metal is 3.35 × 10–7 kg per Coulomb. The mass of the metal liberated at the cathode when a 3A current is passed for 2 seconds will be

Question:

The electrochemical equivalent of a metal is $3.35 \times 10^{-7} \mathrm{~kg}$ per Coulomb. The mass of the metal liberated at the cathode when a $3 \mathrm{~A}$ current is passed for 2 seconds will be

1. $6.6 \times 10^{57} \mathrm{~kg}$

2. $9.9 \times 10^{-7} \mathrm{~kg}$

3. $19.8 \times 10^{-7} \mathrm{~kg}$

4. $1.1 \times 10^{-7} \mathrm{~kg}$

Correct Option: 3

Solution:

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