Oxidation number of elements in atoms and ions Quiz

Determine the oxidation number of ‘Cl’ in ClO₄^–

-5

-7

+7

-3

-1

+5

The oxidation number of ‘O’ in OF₂ is

-1

-2

+1

+2

The oxidation number of Cr in Cr₂O₇^2-

-6

+12

+3

+6

-3

Determine the oxidation number of ‘N’ in NH₄⁺

+3

-3

+4

+1

What is the oxidation number of ‘O’ in H₂O₂

+1

-1

+2

-2

Determine the oxidation number of Nitrogen ‘N’
in the compound HNO₃

-5

+3

-3

+5

+1