Oxidation number of elements in atoms and ions Quiz

What is the oxidation number of ‘O’ in H₂O₂

+1

+2

-1

-2

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

-7

-1

-5

-3

+7

+5

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

+5

+1

-3

-5

+3

The oxidation number of ‘O’ in OF₂ is

-1

+1

-2

+2

The oxidation number of Cr in Cr₂O₇^2-

+6

+3

+12

-3

-6

Determine the oxidation number of ‘N’ in NH₄⁺

-3

+4

+3

+1