By which of the following blue colour is obtained while adding hydroge – InterviewSolution

1.	By which of the following blue colour is obtained while adding hydrogen paroxide (H_(2)O_(2)) in acidic potassium dichromate?
Answer» `CrO_(3)` `Cr_(2)O_(3)` `CrO_(5)` `CrO_(4)^(2-)` ANSWER :C

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