Question

Which of the following will not conduct electricity?

• A. Ionic compounds
• B. Metals
• C. Water

Answer 1

The correct option is A

Ionic compounds

The explanation for the correct option:

In the case of option A,

1. Ionic compounds in the solid state, do not conduct electricity because ions cannot exist in the solid due to their rigid structure.
2. Because their ions are free to move from place to place, ionic compounds conduct electricity when molten (liquid) or in an aqueous solution.

The explanation for incorrect options:

In the case of option B,

1. Metals conduct electricity because their electrons are relatively free to move.

In the case of option C,

1. Because of the dissolved ions and impurities, water can conduct electricity.

Hence, Option(A) is correct.