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JEE Main 2014 Chemistry question

ChemistryElectrochemistryJEE Main 2014

A current of 10.0 A flows for 2.00 h through an electrolytic cell containing a molten salt of metal X. This results in the decomposition of 0.250 mol of metal X at the cathode. The oxidation state of X in the molten salt is: (F = 96,500 C)

Answer: (3)

Solution

Charge passed C, i.e. mol of electrons. Since 0.250 mol of metal

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Question ID VK-104387