How much electricity in terms of Faraday is required to produce 20.0g of Ca from molten CaCl2.
A
1F
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B
2F
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C
20F
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D
0.1F
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Solution
The correct option is A1F The corresponding reaction is, Ca2++2e−⟶Ca
So, 2F electricity is required to produce 1mol of Ca
The molar mass of Ca is 40g ∴ To produce 20g of Ca1F is required