Oxidation numbers

Multiple Choice

Electrochemistry is the branch of physical chemistry focused on the laws that refer to the generation of electricity through combinations of chemical type.

• True

• False

Multiple Choice

Oxidation is the:

• redox reaction

• gain of electrons

• loss of electrons

• neutral reaction

Fill in the Blank

Reduction is the ____ of electrons

Multiple Choice

The oxidation number of a free, neutral element is:

• Zero

• never equal to zero

• neutral

• None of the above

Fill in the Blank

The oxidation number of Group IA elements is always ____

Fill in the Blank

The oxidation number of Group IIA elements is always ____

Multiple Choice

Oxidation number of oxygen is typically:

• +2

• -1

• -2

• +1

Multiple Choice

The total oxidation number of a neutral compound is zero

• True

• False

Multiple Choice

When a chemical compound ends up in SO4, the oxidation number of S will always be +6 and that of O will always be +2

• True

• False

Poll

Grace question!

Oxidation number of hydrogen is typically +1?

• True

• False