Leaving Cert Chemistry 2018

The 2018 Leaving Cert Chemistry exam paper and official marking scheme, free below as direct PDF links from the State Examinations Commission archive.

Higher Level

Exam PaperMarking Scheme
What's in the 2018 Higher Level paper?
  • Q1 volumetric analysis, water hardness, edta titration, titration · 50 marks
  • Q2 soap preparation, reflux, liquid-liquid extraction, recrystallisation · 50 marks
  • Q3 heat of reaction, calorimetry, neutralisation, experimental error · 50 marks
  • Q4 short-answer, atomic structure, bonding, oxidation numbers · 50 marks
  • Q5 mass spectrometry, relative atomic mass, isotopes, radioactivity · 50 marks
  • Q6 oil refining, fractional distillation, heat of combustion, cracking · 50 marks
  • Q7 rates of reaction, activation energy, collision theory, reaction profile · 50 marks
  • Q8 structural isomers, boiling points, intermolecular forces, oxidation of alcohols · 50 marks
  • Q9 chemical equilibrium, equilibrium constant, le chatelier, industrial chemistry · 50 marks
  • Q10 benzene, delocalisation, atomic theory, mole calculations · 50 marks
  • Q11 electronegativity, molecular shape, ph, industrial chemistry · 50 marks

Ordinary Level

Exam PaperMarking Scheme
What's in the 2018 Ordinary Level paper?
  • Q1 organic chemistry, ethene preparation, unsaturation, experimental · 50 marks
  • Q2 volumetric analysis, acid-base titration, concentration calculation, experimental · 50 marks
  • Q3 rates of reaction, catalysts, hydrogen peroxide, graphing, experimental · 50 marks
  • Q4 short answer, periodic table, electrolysis, ph, empirical formula · 50 marks
  • Q5 bonding, electronegativity, intermolecular forces, molecular shape · 50 marks
  • Q6 organic chemistry, hydrocarbons, homologous series, aromatic compounds, greenhouse gases · 50 marks
  • Q7 water hardness, water treatment, flocculation, chlorination · 50 marks
  • Q8 organic reactions, alcohols, aldehydes, carboxylic acids, fehling's test · 50 marks
  • Q9 oxidation and reduction, flame tests, qualitative analysis, reactivity · 50 marks
  • Q10 acids and bases, atomic structure, isotopes, mole calculations · 50 marks
  • Q11 states of matter, chemical equilibrium, le chatelier, metals, industrial chemistry · 50 marks
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