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Electrochemical Cell

Which of the ...

Question

Which of the following expressions about the electrolysis of a salt solution is correct ?
m = mass of substance deposited;Q=electricity in coulombs;M=molar mass
z = valence ; F = faraday

m = QM/Fz

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m = ItF/Mz

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m = Itz/MF

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m = ItMF/z

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Solution

The correct option is A
m = QM/Fz

1 F of electricity deposits 1 g.eq of any substance

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