WAEC - Chemistry (2019 - No. 19)
which of the following solutions containing one mole per dm\(^3\) of the compound would have the lowest PH?
ethanoic acid
hydrochloric acid
sodium chloride
sodium hydrogentrioxocarbonate(iv)
Explanation
Low PH means strongly acidic cause acidity increases with decreasing PH values.
Example is Hydrochloric Acid