STANDARD Chemistry Faraday's Laws MCQ Question
How much electricity in terms of Faraday is required to produce 100 g of Ca from molten CaCl₂?
1 F
2 F
3 F
5 F
Correct Answer
Detailed Explanation
The reaction is CaCl₂ → Ca²⁺ + 2Cl⁻ and Ca²⁺ + 2e⁻ → Ca. For 2 moles (40 g) of Ca, 2F is required. Therefore, for 100 g of Ca, 5F is needed.
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