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JEE Main Chemistry question

ChemistryElectrochemistryJEE Main

The concentration (in molarity) of left after passing a 965 ampere current for one second through a 2 M solution using Ni electrodes (both anode and cathode made of Ni) is

Answer: 2

Solution

With Ni electrodes on both sides, this is an electrorefining cell: at the cathode removes from solution, while at the (active) anode

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Question ID VK-144141