Tardigrade
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Tardigrade
Question
Chemistry
The colour of K2Cr2O7 changes from red orange to lemon yellow on treatment with aqueous KOH because of
Q. The colour of
K
2
C
r
2
O
7
changes from red orange to lemon yellow on treatment with aqueous
K
O
H
because of
2142
225
The d-and f-Block Elements
Report Error
A
The reduction of
C
r
V
I
to
C
r
III
16%
B
The formation of chromium hydroxide
24%
C
The conversion of dichromate to chromate
34%
D
The oxidation of potassium hydroxide to potassium peroxide
26%
Solution:
The conversion of dichromate to chromate.
