Topics include the reactions of lanthanum carbonate ionisation energies of sodium the synthesis of tazarotene analysis of chemicals that bombardier beetles use to defend themselves and the structure and reactions of methane hydrates. Past paper | Mark scheme | Examiners’ report 2014 Topics include calculations based on indium tin oxide properties of 2-methylpropanenitrile the synthesis of Ritalin rates of metabolism of ethanol and reactions and thermodynamics of ‘green’ jet fuel. Past paper | Mark scheme | Examiners’ report 2015 Topics include thermodynamics of the sulfur–iodine cycle reactions of tungsten NMR of unsaturated molecules the synthesis of Flibanserin and analysing ancient bones. Past paper | Mark scheme | Examiners’ report 2016 Topics include the properties of sodium hypochlorite reactions and kinetics of atmospheric gases alloys of titanium the structure and synthesis of twistane and reactions of superbases. Past paper | Mark scheme | Examiners’ report 2017 Topics include reactions within lithium-ion batteries sustainable methods of producing ammonia isotopes and reactions of Uranium the synthesis of dextromethorphan and compounds of helium and sodium. Past paper | Answer booklet | Mark scheme 2018 Topics include carbon dioxide in fizzy drinks electrolysis of precious metals and NMR spectra of platinum complexes the kinetics of nerve agent treatments synthesising pesticides and calculations on biodegradable polymers. Past paper | Answer booklet | Mark scheme 2019 Topics include the reactions and structure of calcium carbide the thermodynamics of hydrogen as a fuel the structure of UV-absorbing chemicals structures of silicon oxides kinetics in colourful compounds and synthesising -ladderanoic acid. Past paper | Answer booklet | Mark scheme 2020 Topics include reactions that produce phosphine carbon capture by calcium looping synthesis and reactions of levulinic acid Newman projections synthesis of hydroxychloroquine and kinetics of the formation of xenon difluoride.
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Browse the summary of papers and topics below to find a particular question, or select a paper to work through from beginning to end.Ĭhemistry Olympiad papers focus on problem-solving and reward resilience, so students should attempt as many parts of each question as they can, and try not to be put off if there are parts they can’t answer. Even a seemingly ‘low’ mark can earn a medal in the competition.
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Past papers can be used flexibly by teachers and students, with varying degrees of independence.
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How to use Chemistry Olympiad past papers Hamied Inspirational Chemistry Programme.Introductory maths for higher education.The physics of restoration and conservation.