Leaving Cert Chemistry: Acids, Bases & pH questions

Acid–base theory and the pH scale: definitions and theories, conjugate pairs, the self-ionisation of water, strong/weak acid and base calculations, indicators and titration curves.

28 past Chemistry questions on this topic, spanning 2015 to 2025, grouped by year. Every question opens on the exact page of the official paper, with its marking scheme beside it.

Acids, Bases & pH question pack

Every past question on this topic, taken from the official exam papers and set out for printing. Free, no sign-up.

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2025 · 1 question

2023 · 1 question

Paper 1 · Q750 marks

water treatment

2022 · 1 question

2021 · 1 question

Q750 marks

equilibrium

Show 6 earlier years (2015 to 2020)

2020 · 1 question

2019 · 1 question

2018 · 2 questions

Q350 marks

heat of reaction, calorimetry, experimental error

Q1150 marks

electronegativity, molecular shape, industrial chemistry

2017 · 1 question

2016 · 1 question

Q1050 marks

oxidation numbers, radioactivity

2015 · 1 question

Acids, Bases & pH question pack

Every past question on this topic, taken from the official exam papers and set out for printing. Free, no sign-up.

Try a random question now →

0 of 0 doneSaved on this device.

2025 · 2 questions

Paper 1 · Q250 marks

volumetric analysis, titration, standard solution

Paper 1 · Q750 marks

alkali metals, balancing equations

2024 · 1 question

Paper 1 · Q950 marks

water treatment

2023 · 1 question

2022 · 1 question

2021 · 3 questions

Q250 marks

titration, stoichiometry

Q350 marks

thermochemistry, heat of reaction

Q750 marks

water treatment, hard water

Show 6 earlier years (2015 to 2020)

2020 · 1 question

Q750 marks

hard water, water treatment

2019 · 1 question

Q950 marks

water treatment

2018 · 2 questions

Q450 marks

short answer, periodic table, electrolysis, empirical formula

Q1050 marks

atomic structure, isotopes, mole calculations

2017 · 2 questions

Q350 marks

heat of reaction, exothermic, experimental

Q1150 marks

chemical equilibrium, le chatelier, atmospheric chemistry, metals

2016 · 1 question

Q1050 marks

chromatography, covalent bonding

2015 · 1 question

Q750 marks

water treatment, chlorination

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Questions come from the official State Examinations Commission papers. Every link opens the original PDF on examinations.ie. The topic packs reproduce the same questions unchanged, with the year, paper and question number printed on each one.