Question

When a molten salt was electrolysed for 5 min with $9.65A$ current, $0.72g$ of the metal was deposited. Calculate the Eq. Wt. of the metal.

• A. 6
• B. 24
• C. 10
• D. 4

Answer 1

The correct option is B 24

The equivalent weight is given by the expression $\text{Equivalent weight}=\frac{W\times 96500}{I\times t}$
Here W is the mass of the substance deposited, I is the current and t is the time.
Substitute values in the above expression.
$\text{Equivalent weight}=\frac{0.72\times 96500}{9.65\times 5\times 60}=24$.
Hence, the equivalent weight of the metal is 24.