Oxidation number of elements in atoms and ions Quiz

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

-1

+7

-7

-5

-3

+5

The oxidation number of ‘O’ in OF₂ is

-2

-1

+2

+1

The oxidation number of Cr in Cr₂O₇^2-

+12

+3

-6

+6

-3

Determine the oxidation number of ‘N’ in NH₄⁺

+4

-3

+3

+1

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

-3

+1

+3

+5

-5

What is the oxidation number of ‘O’ in H₂O₂

-1

+2

-2

+1