Question

Reaction of potasium dichromate i acidic and basic medium

Answer 1

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Oxidation–reduction properties

The chromate and dichromate ions are fairly strong oxidizing agents. Commonly three electrons are added to a chromium atom, reducing it to oxidation state +3. In acid solution the aquated Cr3+ ion is produced. In alkaline solution chromium(III) hydroxide is produced.

Answer 2

The chromate and dichromate ions are fairly strong oxidizing agents. Commonly three electrons are added to a chromium atom, reducing it to oxidation state +3. In acid solution the aquated Cr3+ ion is produced. In alkaline solution chromium(III) hydroxide is produced.