Question

explain why anhydrous HCl is a poor conductor while aqueous hcl is an excellent conductor

Answer 1

Anhydrous HCl is a poor conductor because it does not contain free ions.

On the other hand in its aqueous form, it contains free ions and thus it conducts electricity.

Hope it helps

Answer 2

Hcl when anhydrous has no h+ ions and when dissolved in water it has h+ ions which makes it a good conductor of electricity