Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Which one of the following statement is correct when 
is passed through acidified
solution?
A
The solution is decolourised.
B
is reduced. C
is formed. D
The solution turns blue.
Text Solution
Verified by ExpertsThe correct answer is:
C
When 
is passed through acidified 
solution, green chromium sulphate is formed. In this reaction, oxidation state of Cr changes from +6 to +3 . 
The appearance of green colour is due to the reduction of chromium metal from 
to 
.
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