Q18 · 2020 · Paper 1Unclassified1 mark
QUESTION 18
Solution A has a pH of 3 and solution B has a pH of 6. This indicates that solution A is
(A)
(A) _ less acidic and has 0.5 times the concentration of hydrogen ions in solution B.
(B) more acidic and has 2 times the concentration of hydrogen ions in solution B.
(B)
(©)
(C) less acidic and has 0.001 times the concentration of hydrogen ions in solution B.
(D) more acidic and has 1000 times the concentration of hydrogen ions in solution B.
(D)
WORKED SOLUTION
1 markAnswer D
OFFICIAL ANSWERD
QCAA awards 1 mark for selecting option D.
Correct option from the official QCAA answer key.