Published by:
CGP EDU Academic Team
Published on: August 12, 2026
In acidic medium, 
changes 
to 
which has two (-O-O-) bonds. Oxidation state of Cr in 
is:
Text Solution
Verified by ExpertsThe correct answer is:
C
When 
is added to an acidified solution of a dichromate 
, a deep blue
coloured complex, chromic peroxide, 
[or 
] is formed.
This deep blue coloured complex has the following structure :
Oxidation state of Cr is +6 due to the presence of two peroxide linkages, which can be calculated as:
In 
, let the oxidation state of Cr be x
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