Carboxylic Acid and Acid DerivativesHard

Question

What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?

Options

A.Cr2O72- and H2O are formed
B.CrO42- is reduced to + 3 state of Cr
C.CrO42- is oxidized to +7 state of Cr
D.Cr3+ and Cr2O72- are formed

Solution

Cr2O72- + OH- → 2CrO42- + H+. The above equilibrium shifts to L.H.S. on addition of acid.

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