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JEE Main Chemistry question

ChemistryEquilibriumJEE Main

**Statement 1:** On cooling in a freezing mixture, colour of the mixture turns pink from deep blue for a reaction [Co(H_2O)_6]^{2+}(aq)+4Cl^-(aq)\rightleftharpoons[CoCl_4]^{2-}(aq)+6H_2O(l). **Statement 2:** Reaction is endothermic, so on cooling the reaction moves to the backward direction.

Answer: (A)

Solution

Formation of the blue complex is endothermic; cooling shifts the equilibrium backward

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Question ID VK-135754