To an acidified dichromate solution- Na2O2 is added and shaken- What is observed-

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Properties and Reactions of Sodium Peroxide

To an acidifi...

Question

To an acidified dichromate solution, Na₂O₂ is added and shaken. What is observed?

Blue colour

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Orange colour changing to green directly

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Copious evolution of oxygen

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Bluish-given precipitate

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Solution

The correct option is A
Blue colour

This is a standard question from many different exams. In this reaction, $C r O_{5}$ is Chromium (VI) oxide peroxide - a blue coloured compound - is produced.

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To an acidified dichromate solution, Na2O2 is added and shaken. What is observed?

The correct option is A Blue colour This is a standard question from many different exams. In this reaction, CrO5 is Chromium (VI) oxide peroxide - a blue coloured compound - is produced.

To an acidified dichromate solution, Na₂O₂ is added and shaken. What is observed?

The correct option is A
Blue colour

This is a standard question from many different exams. In this reaction, $C r O_{5}$ is Chromium (VI) oxide peroxide - a blue coloured compound - is produced.