1.

A solution of potassium chromate is treated with an excess of dilute nitric acid. Then the observations is

Answer»

`CR^(3+)` and `Cr_20_7^(2-)` are formed
`Cr_20_7^(2-)` and `H_2O` are formed
`Cr_20_7^(2-)` is REDUCED to +3 state of Cr
`Cr_20_7^(2-)` is oxidised to +7 state of Cr

Answer :B


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