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Chemistry
The colour of K2Cr2O7 changes from red orange to lemon yellow on treatment with aqueous KOH because of
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Q. The colour of $K_2Cr_2O_7$ changes from red orange to lemon yellow on treatment with aqueous $KOH$ because of
The d-and f-Block Elements
A
The reduction of $Cr^{VI}$ to $Cr^{III}$
12%
B
The formation of chromium hydroxide
25%
C
The conversion of dichromate to chromate
38%
D
The oxidation of potassium hydroxide to potassium peroxide
25%
Solution:
The conversion of dichromate to chromate.