NEET 2011 Chemistry question

ChemistryElectrochemistryNEET 2011

A solution contains , and ions. This solution was treated with iodine at . for is and for = . The favourable redox reaction is :

Answer: (3)

Solution

A redox reaction is spontaneous when . The species with the higher reduction potential is reduced. ( V) is higher than ( V), so is reduced to

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Question ID VK-090672