Class 11 Chemistry Redox Reactions Oxidation number and Oxidation state

Difficult

Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction,the oxidation number of chromium

A
Increases from $+3$ to $+6$
B
Decreases from $+6$ to $+3$
C
Remains unchanged
D
Decreases from $+6$ to $+2$

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Redox Reactions

Subtopic

Oxidation number and Oxidation state

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