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The number of Faradays (F) required to p...

The number of Faradays (F) required to produce 20 g of calcium from molten `CaCl_(2)` (Atomic mass of Ca = 40 g `mol^(-1)`) is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
A
`Ca_((aq))^(2+)+underset(underset(1F)(2F))(2e^(-)) rarr underset(underset(20g)("1 mole =40 g"))(Ca_((s)))`
Thus, one Faraday is required to produce 20 g of calcium from molten `CaCl_(2)`.
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