Oxidation number of elements in atoms and ions Quiz

The oxidation number of Cr in Cr₂O₇^2-

-3

+6

+12

-6

+3

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

-5

+5

+3

+1

-3

What is the oxidation number of ‘O’ in H₂O₂

-2

+2

-1

+1

Determine the oxidation number of ‘N’ in NH₄⁺

+1

+3

+4

-3

The oxidation number of ‘O’ in OF₂ is

+2

-2

-1

+1

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

-5

+5

-7

-3

+7

-1