Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The yellow colour of chromate ion and orange colour of dichromate ion is due to
A
transition only B
charge transfer only
C
both 
- 
transition and charge transfer
- transition and charge transfer D
transitions only
Text Solution
Verified by ExpertsThe correct answer is:
B
is present in +6 oxidation state. In both of chromate 
and dichromate 
ions i.e. 
-configuration. So, d-d transition is absent in them.
The yellow colour of 
and orange colour of 
is due to charge transfer of oxygen ligand get transfered into vacant 
-orbital of metal 
.
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