Question

A compound which, when dissolved in water, barely conducts electrical current can probably be:

• A. a strong electrolyte
• B. an ionic salt
• C. a strong acid
• D. a strong base
• E. none of the above

Answer 1

The correct option is E none of the above

A compound which, when dissolved in water, barely conducts electrical current can probably be a non-electrolyte such as urea or glucose. It does not dissociate in aqueous solution and hence does not produce current carrying ions. Hence, they do not conduct electrical current. On the other hand, a strong electrolyte such as an ionic salt ($NaCl$ or $KCl$) or a strong acid ($HCl$ or sulphuric acid) or a strong base ($NaOH$ or $KOH$) dissociate in aqueous solution and hence produce current carrying ions. Hence, they do conduct electrical current.