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JEE Main Chemistry question

ChemistryRedox ReactionsJEE Main

'' factor for in the reaction, Cu_2S+KMnO_4 \to Cu^{2+}+SO_2+Mn^{2+}, is .

Answer: 8

Solution

In : Cu is (2 Cu atoms, 1 electron lost each on oxidation to , total 2 electrons)

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Question ID VK-137131