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JEE Main Chemistry question

ChemistryRedox ReactionsJEE Main

-factors for CuS and CuS when they react with KMnO in acidic medium are

Answer: (D)

Solution

In CuS, Cu goes from to (1 electron 2 Cu atoms = 2) and S goes from to in SO (6 electrons); total -factor . In CuS,

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Question ID VK-130673