Redox Recap Part 1

The oxidation state of oxygen in O₂ is 0.

• True

• False

The oxidation state of magnesium in Mg²⁺ is 0.

• True

• False

The oxidation state of sulfur in SO₃ is

• +2

• +3

• +4

• +6

The oxidation state of copper in CuSO₄ is

• +1

• +2

• -1

• -2

The oxidation state of iodine in KI is

• +1

• -1

• +2

• -2

The oxidation state of iodine in I₂ is

• -1

• 1-

• 0

The oxidation state of manganese in potassium manganate(VII), KMnO₄ is

• -1

• +4

• +7

• +8

The oxidation state of manganese in Mn²⁺ is

• 0

• 2+

• +2