The solution that will conduct the highest amount of electricity is?

A. 0.5 mol dm−³ of hydrochloric acid
B. 2.0 mol dm−³ of hydrochloric acid
C. 0.5 mol dm−³ ethanoic acid
D. 2.0 mol dm−³ ethanoic acid

Correct Answer:

Option A – 0.5 mol dm−³ of hydrochloric acid