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The colour of K(2)Cr(2)O(7) changes from...

The colour of `K_(2)Cr_(2)O_(7)` changes from red-orange to lemon-yellow on treatment with `KOH_((aq.))`, because of:

A

reduction of Cr(VI) to Cr(III)

B

formation of chromium hydroxide

C

conversion of dichromate to chromate

D

oxidation of potassium hydroxide to potassium peroxide.

Text Solution

Verified by Experts

The correct Answer is:
C
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