NEET 2020 Chemistry question
The number of Faradays (F) required to produce 20 g of calcium from molten CaCl (Atomic mass of Ca = 40 g mol) is :
Answer: (A)
Solution
Ca + 2e Ca; 20 g = 0.5 mol needs F.
The number of Faradays (F) required to produce 20 g of calcium from molten CaCl (Atomic mass of Ca = 40 g mol) is :
Ca + 2e Ca; 20 g = 0.5 mol needs F.