Question

Which of the following compounds are poor conductors of electricity?

• A. Distilled water
• B. HCl in water
• C. Pure $C{H}_{3}COOH$
• D. $H_{2}S{O}_4$ in water

Answer 1

Answer: (A), (C)

The correct options are
A Distilled water
C Pure $C{H}_{3}COOH$

Compounds that form covalent bonds or compounds which do not ionise in water are the poor conductors of electricity.

In distilled water, there are no impurities or salts or ions, so distilled water does not conduct electricity. $C{H}_{3}COOH$ is covalent in nature and pure acetic acid does not dissociate in water, thus being poor conductors of electricity.

On the other hand, $H_{2}S{O}_4$ or $HCl$ when added to water, dissociate into their respective ions and conduct electricity.