Class 12 Chemistry d-and f-Block Elements Compounds of Transitional elements

Difficult

The orange-red color of an aqueous solution of $K_2Cr_2O_7$ changes to lemon yellow when treated with aqueous $KOH$. What is the reason for this?

A
Reduction of $Cr(VI)$ to $Cr(III)$.
B
Conversion of chromium ion to chromate ion.
C
Conversion of dichromate ion to chromate ion.
D
Oxidation of potassium hydroxide to potassium peroxide.

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

d-and f-Block Elements

Subtopic

Compounds of Transitional elements

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