Question

Elements of group 14 exhibit an oxidation state of

• A. +4 only
• B. +2 and +4 only
• C. +3 only
• D. +2 only

Answer 1

The correct option is B

+2 and +4 only

Explanation

The oxidation state: of an atom in a chemical compound provides insight into the number of electrons lost and, therefore, describes the extent of oxidation of the atom.

The explanation for the Correct answer

• Group 14 elements possess 4 valence electrons. Consequently, group oxidation status is + 4. However, the lower oxidation state becomes increasingly stable due to the inert pair effect, and the higher oxidation state becomes less stable.
• Therefore, this group exhibits +4 and +2 oxidation states.

Elements of group 14 exhibit an oxidation state of +4 and +2.