January 26, 2021 – Stan's Academy

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

-1

+5

-5

+7

-3

-7

The oxidation number of ‘O’ in OF₂ is

+1

-2

-1

+2

What is the oxidation number of ‘O’ in H₂O₂

+2

+1

-2

-1

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

-5

+3

+5

-3

+1

Determine the oxidation number of ‘N’ in NH₄⁺

-3

+1

+3

+4

The oxidation number of Cr in Cr₂O₇^2-

+3

+6

-6

+12

-3

Day: January 26, 2021