Q.

The blue colour produced on adding H2O2, to acidified Kr2Cr2O7 is due to the formation of

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a

CrO5

b

Cr2O3

c

CrO42−

d

CrO3

answer is A.

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Detailed Solution

Chromium per oxide is a blue color compound. it has two peroxy linkages, the oxidation state is +5.
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