Oxidation

Oxidation number of O in its stable elemental form, O₂:

• 0

• -1

• -2

• +2

Oxidation number of Fe in Fe₂O₃:

• 0

• -2

• +2

• +3

What is oxidation number of Cr in
Cr₂O₇^2-?

• -2

• +2

• +6

• +12

What is the oxidation state of Cl in ClO^- ?

• 0

• +1

• -1

• +2

What is the oxidation state of H in H₂?

• +2

• +1

• 0

• None of the above

What is the oxidation state of Pb in PbO ?

• +2

• +4

• 0

• -2

S in HSO₄^- ?

• +5

• -6

• +6

• +2

Oxidation number of O in the compound H₂O:

• 0

• -1

• -2

• +2

Tags

NGSS.HS-PS1-2

Oxidation number of N in NH₄⁺:

• 0

• +2

• -3

• +4

What is oxidation number of P in K₃PO₄?

• +1

• +5

• -2

• 0