O Level Chemistry (5070)

Acids, bases & salts Banker

40 questions · about 4% of the marks we indexed · examined in 9 of 9 sessions.

Questions by year

Paper

2026 May/June · Paper 11 · Q181 markProperties of acids & bases
2026 May/June · Paper 11 · Q191 markStrong/weak acids & pH
2026 May/June · Paper 21 · Q1 (a)1 markTypes of oxide
2026 May/June · Paper 21 · Q5 (a, b, e)5 marksPreparation of salts & solubility
2026 May/June · Paper 31 · Q2 (b(i), b(ii))3 marksStrong/weak acids & pH

2023 Oct/Nov · Paper 11 · Q201 markProperties of acids & bases
2023 Oct/Nov · Paper 11 · Q211 markTypes of oxide
2023 Oct/Nov · Paper 21 · Q6 (c(i))1 markPreparation of salts & solubility
2023 Oct/Nov · Paper 21 · Q7 (b, c(i), c(ii))3 marksProperties of acids & bases · Strong/weak acids & pH
2023 Oct/Nov · Paper 41 · Q3 (b(i), b(ii))3 marksProperties of acids & bases · Strong/weak acids & pH
2023 May/June · Paper 11 · Q191 markStrong/weak acids & pH
2023 May/June · Paper 11 · Q201 markProperties of acids & bases
2023 May/June · Paper 21 · Q1 (b)1 markTypes of oxide
2023 May/June · Paper 21 · Q3 (a(i), a(ii), b, c(i))6 marksPreparation of salts & solubility

2022 Oct/Nov · Paper 11 · Q291 markPreparation of salts & solubility
2022 Oct/Nov · Paper 21 · Q4 (c(i), c(ii))2 marksProperties of acids & bases
2022 Oct/Nov · Paper 21 · Q6 (c(i), c(ii), c(iii))3 marksProperties of acids & bases · Strong/weak acids & pH
2022 May/June · Paper 11 · Q251 markStrong/weak acids & pH
2022 May/June · Paper 11 · Q271 markPreparation of salts & solubility
2022 May/June · Paper 11 · Q281 markPreparation of salts & solubility
2022 May/June · Paper 21 · Q1 (d)1 markPreparation of salts & solubility
2022 May/June · Paper 21 · Q9 (b(i))1 markPreparation of salts & solubility

Find the full paper on the official Cambridge past-papers page or ask your school. “Paper 42” means Paper 4, variant 2.

Subtopic	Marks indexed	Sessions
Preparation of salts & solubility Banker	24	9/9
Strong/weak acids & pH Banker	21	9/9
Properties of acids & bases	12	6/9
Types of oxide	9	7/9