The equilibrium Cr_2O_7^{2-} rightleftharpoon | vedclass

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(B) The equilibrium between dichromate and chromate ions is given by: $Cr_2O_7^{2-} + 2OH^- \rightleftharpoons 2CrO_4^{2-} + H_2O$. In a basic medium,

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Basic medium

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(B) The equilibrium between dichromate and chromate ions is given by: $Cr_2O_7^{2-} + 2OH^- \rightleftharpoons 2CrO_4^{2-} + H_2O$. In a basic medium,the concentration of $OH^-$ ions increases. According to Le Chatelier's principle,adding a reactant $(OH^-)$ shifts the equilibrium in the forward direction (to the right) to produce more $CrO_4^{2-}$ ions. Therefore,the equilibrium shifts to the right in a basic medium.

The equilibrium $Cr_2O_7^{2-} \rightleftharpoons 2CrO_4^{2-}$ shifts to the right in:

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