Leaving Cert Chemistry 2021

The 2021 Leaving Cert Chemistry exam paper and official marking scheme, free below as direct PDF links from the State Examinations Commission archive.

Higher Level

What's in the 2021 Higher Level paper?
  • Q1 volumetric analysis, titration, stoichiometry · 50 marks
  • Q2 organic chemistry, soap, hydrolysis · 50 marks
  • Q3 flame tests, oxidising agents, displacement reactions · 50 marks
  • Q4 atomic structure, bonding, short answer · 50 marks
  • Q5 periodic table, ionisation energy, atomic radius · 50 marks
  • Q6 fuels, fractional distillation, thermochemistry · 50 marks
  • Q7 acids and bases, acid dissociation constant, equilibrium · 50 marks
  • Q8 organic chemistry, alcohols, functional groups · 50 marks
  • Q9 chemical equilibrium, haber process, le chatelier's principle · 50 marks
  • Q10 molecular shapes, reaction rates, stoichiometry · 50 marks
  • Q11 organic chemistry, environmental chemistry, atomic theory · 50 marks

Ordinary Level

What's in the 2021 Ordinary Level paper?
  • Q1 organic chemistry, ethyne, unsaturation · 50 marks
  • Q2 titration, neutralisation, stoichiometry · 50 marks
  • Q3 thermochemistry, neutralisation, heat of reaction · 50 marks
  • Q4 general chemistry, atomic structure, environmental chemistry · 50 marks
  • Q5 chemical bonding, electronegativity, electron configuration · 50 marks
  • Q6 fuels, fractional distillation, hydrocarbons · 50 marks
  • Q7 water treatment, acids and bases, hard water · 50 marks
  • Q8 organic chemistry, alkenes, addition reactions · 50 marks
  • Q9 rates of reaction, gas collection, graph interpretation · 50 marks
  • Q10 atomic theory, electrolysis, stoichiometry · 50 marks
  • Q11 periodic table, equilibrium, industrial chemistry · 50 marks
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All PDFs open on the State Examinations Commission archive (examinations.ie). ExamAI links to them; we don't host or alter them.