Back to Directory
NEET ChemistryMedium

The number of Faradays(F) required to produce 20 g of calcium from molten CaCl2CaCl_2 (Atomic mass of Ca = 40 g mol−1mol^{-1}) is

1

1

2

2

3

3

4

4

Step-by-Step Solution

1 equivalent of any substance is deposited by 1 F of charge. We have, 20 g calcium. Number of equivalents = Given massEquivalent mass=2020=1\frac{\text{Given mass}}{\text{Equivalent mass}} = \frac{20}{20} = 1. Equivalent mass of Ca = 402=20\frac{40}{2} = 20. So, 1 faraday of charge is required.

Practice Mode Available

Master this Topic on Sushrut

Join thousands of students and practice with AI-generated mock tests.

Get Started