Home Chemistry D and F - Block Elements General When H2O2 is added to an acidified solution …
Chemistry D and F - Block Elements General Single Correct MCQ
Published on: August 12, 2026

When H2O2 is added to an acidified solution of K2Cr2O7

A
Solution turns green due to formation of Cr2O3
B
Solution turns yellow due to formation of K2CrO4
C
A blue coloured compound CrO(O2)2 is formed
D
Solution gives green ppt of Cr(OH)3

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Text Solution

Verified by Experts
The correct answer is:
C

Cr2O72– + 2H+ + 4H2O2 2CrO(O2)2 (blue coloured) + 5H2O.

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