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Chemistry Electrochemistry General Single Correct MCQ
Published on: August 14, 2026

3 faraday of electricity are passed through molten Al 2 O 3 , aqueous solution of CuSO 4 and molten NaCl taken in three different electrolytic cells. The amount of Al, Cu and Na deposited at the cathodes will be in the ratio of –

A
1 mole : 2 mole : 3 mole
B
3 mole : 2 mole : 1 mole
C
1 mole : 1.5 mole : 3 mole
D
1.5 mole : 2 mole : 3 mole

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Verified by Experts
The correct answer is:
C

Equivalent of Al = Equivalent of Cu = Equivalent of Na

or mole Al = mole Cu = 1 mole Na

or 2 : 3 : 6

or 1 : 1.5 : 3 mole ratio

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