Question

The polar covalent compound in gaseous state does not conduct electricity is ______.

Options

• carbon tetrachloride

• ammonia

• methane

Answer 1

The polar covalent compound in gaseous state does not conduct electricity is ammonia.

Explanation:

Ammonia (NH₃) is a polar covalent compound because of the large electronegativity difference between nitrogen and hydrogen atoms. Even though it is polar, it does not conduct electricity in its gaseous state because it exists as neutral molecules with no free, mobile ions or electrons to carry a current. It can conduct electricity only when dissolved in water, where it reacts to produce free-moving ammonium and hydroxide ions.