CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases
Problem
Two acids, X and Y, both of concentration 0.20mol dm−3, have pH values of 2 and 4, respectively. Which of the following statements is true?
(1) X is a stronger acid than Y.
(2) Y is more dilute than X.
(3) X contains more undissociated molecules than Y.
(4) Y contains a higher concentration of H+ ions than X.