One gram atomic weight of metal of the following can be deposited by one Faraday :
A
AuCl3
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B
BaCl2
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C
NaCl
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D
CuSO4
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Solution
The correct option is C NaCl The charge on the metal cation in AuCl3, BaCl2, NaCl and CuSO4 is +3, +2, +1 and +2 respectively. Hence to deposit one gram atomic weight of metal in these electrolytes is 3 F, 2 F, 1 F and 2 F respectively.