Question

The electro chemical equivalent of a substance is its mass liberated at an electrode by what amount of current in half a second ?

• A. 4 A
• B. 3 A
• C. 2 A
• D. 1 A

Answer 1

The correct option is C 2 A

For one electro equivalent of substance to be liberated , $1C$ of charge should pass through the electrolyte.

$Q=1coulomb$

$⟹It=1$

$⟹I\times \frac{1}{2}=1$

$⟹I=2A$

Answer-(C)