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These have explainer videos
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Topic areaTagsDifficulty level (1 = low, 3= high)Title of questionPast Paper dateQuestionMarkscheme & answer booklet linkExplainer incl. video walkthrough (if applicable)
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Concepts in Org Chem / Polymers /Biological Chemistrychirality, polymers, moles, titrationsPolylactic acid biopolymers2019Q52019
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Concepts in Org Chem / Polymers /Biological Chemistrypolymer, radiocarbon datingKing Richard III2016Q62016
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Concepts in Org Chem / Polymers /Biological ChemistryNewman projectionsNewman projection2021Q42021
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Concepts in Org Chem / Polymers /Biological Chemistrycyclohexane conformationsTwistane2017Q42017
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Concepts in Org Chem / Polymers /Biological Chemistrydouble bond equivalents, 13C NMRdouble bond equivalents2016Q32016
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Concepts in Org Chem / Polymers /Biological Chemistrychirality, organic synthesisRitalin2015Q32015
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Concepts in Org Chem / Polymers /Biological Chemistrymetabolites, rate lawethanol metabolites2015Q42015
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Concepts in Org Chem / Polymers /Biological Chemistryamino acids, 1H NMR, equilibrium Kcreatine2013Q52013
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Concepts in Org Chem / Polymers /Biological Chemistryelemental analysis, enantiomersNanocar2012Q52012
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EquilibiraequilibriumCoronavirus testing2022Q42022
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EquilibiraNeutralisation, titration, pH, balancing equations3Titration and phosphates in the environment2007Q32007 Q3https://edu.rsc.org/uk-chemistry-olympiad/titration-and-phosphates-in-the-environment-chemistry-olympiad-worked-answers/1058.article
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Equilibiraamino acids, 1H NMR, equilibrium Kcreatine2013Q52013
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Equilibirabond enthalpy, equlibrium, enthalpy changesulfur2012Q12012
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Equilibiracalculations, pKa/Ka, rates, rate constantkeratin2012Q22012
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EquilibirapKa, equilibriumSwiss cheese2023Q52023
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Main group chemistrynitrous oxide chemistryNitrous oxide2022Q22022
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Main group chemistryreactions and structure of calcium carbide2020Q12020
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Main group chemistryanammox and ladderans2020Q62020
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Main group chemistryphospine2021Q12021
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Main group chemistrySilicon dixoxides2020Q42020
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Main group chemistryredox, electrochemistry, dot and cross, empirical, equationsLithium ions2018Q12018
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Main group chemistryelectrolysis, enthalpy, entropy, Gibbsmaking ammonia with lithium hydroxide2018Q22018
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Main group chemistrynuclear fission, shapes of molecules, radioactive half-lifeenriched uranium2018Q32018
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Main group chemistrysodium hypochlorite,Green Pool of Rio2017Q12017
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Main group chemistryH2S, half-lifeAtmospheric chemistry of H2S2017Q22017
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Main group chemistryproton affinitySuperbases (lithium monoxide)2017Q52017
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Main group chemistrycapturing carbon2021Q22021
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Main group chemistryequations, calcualtionsLanthanum phsophate2014Q12014
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Main group chemistrybond enthalpy, equlibrium, enthalpy changesulfur2012Q12012
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Organic SynthesisMole calculations, organic synthesis, yield calcualtions2Ambergris sperm whale2010Q12010 Q1https://edu.rsc.org/uk-chemistry-olympiad/organic-synthesis-and-ambergris-substitutes-chemistry-olympiad-worked-answers/1060.article#Answers
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Organic Synthesisorganic synthesissynthesis and reactions of levulinic acid2021Q32021
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Organic Synthesisorganic synthesissynthesis of hydroxychloroquine2021Q52021
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Organic Synthesisorganic synthesis, enantiomersSun cream oxybenzone/ octinoxate2020Q32020
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Organic Synthesisorganic synthesisanammox and ladderanes2020Q62020
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Organic Synthesisorganic synthesiscough suppressent dextromethorphan2018Q42018
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Organic Synthesisorganic synthesisAddyi synthesis2016Q42016
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Organic Synthesischirality, organic synthesisRitalin2015Q32015
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Organic Synthesisorganic synthesisTazarotene (spot cream)2014Q32014
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Organic Synthesisorganic synthesisValium Xanax2013Q42013
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Organic Synthesisorganic synthesisCholestreol-lowering Lipitor2012Q42012
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Organic SynthesisDiels-Alder reactionCubanes2022Q32022
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Organic Synthesisstructure, Wittig reactionvaping2023Q42023
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Othergeneral knowledgegeneral knowledge2012Q32012
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Quantitativemole calculations1explosive reactions2011Q32011 Q3https://edu.rsc.org/uk-chemistry-olympiad/writing-explosive-equations-chemistry-olympiad-worked-answers/1062.article
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Quantitativemoles, solubility, Kp, enthalpycarbon dioxide2019Q12019
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Quantitativechirality, polymers, moles, titrationsPoly lactic acid biopolymers2019Q52019
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Quantitativeunit cells, calculationsindium in touchscreens2015Q12015
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Quantitativecalculations, combustiongreen' jet fuel2015Q52015
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Quantitativeequations, calcualtionsLanthanum phsophate2014Q12014
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Quantitativelight, atomic emission,Sodium street lamp2014Q22014
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Quantitativeequations, enthalpy change, 1H NMR, IR,Bombardier Beetles2014Q42014
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Quantitativeequation, gas calculation, unit cellfire and ice (methane hydrate)2014Q52014
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Quantitativeredox titration, mass calculations, volume of a gasLondon 2012 gold medals2013Q22013
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Quantitativecalculations, pKa/Ka, rates, rate constantkeratin2012Q22012
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Quantitativeelemental analysis, enantiomersNanocar2012Q52012
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Rates of reaction (kinetics)activation energy, Arrheniuskinetics of the formation of xenon difluoride2021Q62021
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Rates of reaction (kinetics)colourful compounds2020Q52020
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Rates of reaction (kinetics)orders, rate constantnerve agents2019Q32019
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Rates of reaction (kinetics)H2S, half-lifeAtmospheric chemistry of H2S2017Q22017
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Rates of reaction (kinetics)metabolites, rate lawethanol metabolites2015Q42015
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Spectroscopy / sturcture elucidationNMR, isomerism1Solving a puzzle using spectroscopy2011Q42011 Q4https://edu.rsc.org/uk-chemistry-olympiad/solving-a-puzzle-using-spectroscopy-chemistry-olympiad-worked-answers/1063.article
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Spectroscopy / sturcture elucidationUV, Arrheniuscolourful compounds2020Q52020
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Spectroscopy / sturcture elucidation13P NMR, 1H NMRsynthesis and reactions of levulinic acid2021Q32021
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Spectroscopy / sturcture elucidationmass spec, unit cells, Pt spectroscopyprecious metals2019Q22019
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Spectroscopy / sturcture elucidationdouble bond equivalents, 13C NMRdouble bond equivalents2016Q32016
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Spectroscopy / sturcture elucidationorganic isomers, rotational energy levelsnitriles in space2015Q22015
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Spectroscopy / sturcture elucidationequations, enthalpy change, 1H NMR, IR,Bombardier Beetles2014Q42014
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Spectroscopy / sturcture elucidationamino acids, 1H NMR, equilibrium Kcreatine2013Q52013
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Spectroscopy / sturcture elucidationstructure, Wittig reactionvaping2023Q42023
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Thermodynamicsdynamic light scatteringStoring vaccines2022Q52022
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Thermodynamicsbond enthalpyRocket fuel2023Q12023
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Thermodynamicsbond enthalpy, E10 fuel2022Q12022
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ThermodynamicsBalancing equations, mole calculations, ethlpy calculations, NMR spectroscopy2Enthalpy and the chemistry of matches2009Q32009 Q3https://edu.rsc.org/uk-chemistry-olympiad/enthalpy-and-the-chemistry-of-matches-chemistry-olympiad-worked-answers/1059.article
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ThermodynamicsBalancing equations, thermodynamic calculations, mole calculations, structures1Thermodynamic calculations and sherbet lemons2006Q12006 Q1https://edu.rsc.org/uk-chemistry-olympiad/thermodynamic-calculations-and- sherbet-lemons-chemistry-olympiad-worked-answers/1057.article
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ThermodynamicsErnst equation, electrochemistrythe thermodynamics of hydrogen as a fuel2020Q22020
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Thermodynamicscapturing carbon2021Q22021
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Thermodynamicsmoles, solubility, Kp, enthalpycarbon dioxide2019Q12019
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Thermodynamicselectrolysis, enthalpy, entropy, Gibbsmaking ammonia with lithium hydroxide2018Q22018
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Thermodynamicsenthalpy, entropy, Gibbssulfur-iodine cycle2016Q12016
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Thermodynamicsmoles, combustion,carbon dioxide2009Q22009 Q2
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Thermodynamicscalculations, combustiongreen' jet fuel2015Q52015
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Thermodynamicsenthalpyhydrazine rocket fuel2013Q12013
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Thermodynamicsbond enthalpy, equlibrium, enthalpy changesulfur2012Q12012
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Transition metal chemistrychelation, metal complexChinese knot2022Q42022
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Transition metal chemistrymass spec, unit cells, Pt spectroscopyprecious metals2019Q22019
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Transition metal chemistryoxidation states, unit cells,titanium-iron alloys2017Q32017
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Transition metal chemistrystructure, bonding, oxidation states, unit cellstungsten and Sheelite2016Q22016
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Transition metal chemistryidentifying colured unknownscoloured transition compelxes2013Q32013
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Transition metal chemistryd-orbitals, pH curves, amino acidamino acid complexes2023Q32023
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Unit cellselectronegativity, unit cellselectronegativity, bonding and structure2023Q22023
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Unit cellsmole, unit cell3The microscopic structure of gold leaf2010Q62010 Q6https://edu.rsc.org/uk-chemistry-olympiad/the-microscopic-structure-of-gold-leaf-chemistry-olympiad-worked-answers/1061.article
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Unit cellsreactions and structure of calcium carbide2020Q12020
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Unit cellsmoles, unit cellsHelium2018Q52018explainer: https://edu.rsc.org/download?ac=515776
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Unit cellsoxidation states, unit cells,titanium-iron alloys2017Q32017
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Unit cellsmass spec, unit cells, Pt spectroscopyprecious metals2019Q22019
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Unit cellsunit cells, calculationsindium in touchscreens2015Q12015