Assigning Oxidation States

Assigning Oxidation Numbers

Multiple Choice

Oxidation is the _________ of electrons.

• loss

• gain

• sharing

• transfer

Multiple Choice

Reduction is the ___________ of electrons.

• loss

• gain

• sharing

• transfer

Multiple Choice

Give the oxidation number of all elements in sulfur dioxide, SO₂ molecule.

• S^-2 and O^-2

• S⁺⁴ and O^-2

• S^-4 and O^-2

• S^-2 and O^-1

Multiple Choice

Give the oxidation number of Nitrogen and Oxygen in N₂O molecule.

• Nitrogen +1, Oxygen -2

• Nitrogen -1, Oxygen -2

• Nitrogen +2, Oxygen -2

• Nitrogen -3, Oxygen -2

Multiple Choice

Determine the oxidation number of sulfur atom in H₂S.

• +1

• +2

• -2

• -1

Multiple Choice

Give the oxidation number for the underlined atoms below.

• +3

• +6

• -3

• -6

Multiple Choice

Give the oxidation number for the underlined atoms below.

• +4

• -3

• -4

• 0

Multiple Choice

Give the oxidation number for the underlined atoms below.

• +6

• +5

• +4

• +3

Multiple Choice

Give the oxidation number for the underlined atoms below.

• +4

• -4

• +2

• -2

Multiple Choice

Give the oxidation number for the underlined atoms below.

• -2

• +2

• +1

• -1

Multiple Choice

Indicate the oxidation number of phosphorus in the given molecule.

• +5

• -5

• +3

• -3

Multiple Choice

Determine the oxidation number of the nitrogen atom.

• +2

• -3

• +4

• -5