NEET 2013 Chemistry question

ChemistryEquilibriumNEET 2013

can be prepared from as per the reaction : . The reaction can go to completion by removing ions by adding -

Answer: (3)

Solution

According to Le Chatelier's principle, removing from the right-hand side shifts the equilibrium forward, so the added substance must neutralise without destroying the permanganate formed. (3) is an acidic oxide that removes ($CO_2 + 2OH^-

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Question ID VK-091366