OCR A Year 12 Organic Chemistry
Basic concepts, hydrocarbons, alcohols, haloalkanes, organic analysis and OCR A synthetic routes.
What are you working on?
Choose the Module 4 topic you are studying. Each route keeps Year 12 scope and takes you to the closest matching OCR A practice.
Basic concepts of organic chemistry
OCR 4.1.1
Revise organic foundationsFormulae, nomenclature, isomerism and mechanism language
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Practise Year 12 nomenclatureName structures within OCR A Module 4 scope
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Read skeletal formulaeMolecular formulae from validated OCR Year 12 structures
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Spot functional groupsChoose the groups present in OCR Year 12 skeletal structures
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Recognise structural isomersCompare molecular formulae and connectivity
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Practise curly-arrow rulesElectron-pair movement and mechanism notation
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Play OCR A Mechanism MatchMatch OCR reactions with their mechanisms
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Check OCR definitionsOCR A terminology and definition matching
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My Chemistry questions39 multiple-choice questions
Practise
Alkanes
OCR 4.1.2
Revise alkanesProperties, combustion and radical substitution
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Name alkanesOCR A Year 12 alkane nomenclature
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Read alkane structuresMolecular formulae from validated alkane structures
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Compare organic propertiesBoiling points, molecular mass and carbon-chain effects
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My Chemistry questions48 multiple-choice questions
Practise
Alkenes
OCR 4.1.3
Revise alkenesElectrophilic addition, E–Z isomerism and addition polymerisation
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Name alkene structuresOCR A Year 12 alkene nomenclature
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Read alkene structuresMolecular formulae from validated alkene structures
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Practise alkene conversionsOnly OCR A alkene conversions are selected
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Use alkenes in OCR synthesisYear 12 routes and reagent choices across Module 4
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My Chemistry questions52 multiple-choice questions
Practise
Alcohols
OCR 4.2.1
Revise alcoholsClassification, oxidation, elimination, substitution and practical chemistry
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Name alcohol structuresOCR A Year 12 alcohol nomenclature
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Read alcohol structuresMolecular formulae from validated alcohol skeletal structures
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Practise alcohol conversionsOxidation and other OCR alcohol routes with Alcohols preselected
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Use alcohols in OCR synthesisYear 12 routes, reagents and conditions
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Practise alcohol preparation methodsReflux, distillation, purification and functional-group tests
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My Chemistry questions40 multiple-choice questions
Practise
Haloalkanes
OCR 4.2.2
Revise haloalkanesSubstitution, hydrolysis rates and reactions with cyanide/ammonia
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Name haloalkanesOCR A Year 12 haloalkane nomenclature
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Read haloalkane structuresMolecular formulae from validated haloalkane structures
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Use haloalkanes in OCR synthesisYear 12 routes involving haloalkanes, nitriles and amines
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My Chemistry questions33 multiple-choice questions
Practise
Organic synthesis
OCR 4.2.3
Revise Year 12 organic synthesisFunctional-group changes and practical techniques across Module 4
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Practise OCR Year 12 synthesisReagents, conditions and two-stage routes
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Mix Year 12 conversionsAll playable OCR Module 4 conversion topics
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Practise Year 12 mechanismsCurly arrows, named mechanisms and exact conditions
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Practise organic methodsPreparation, purification and purity checks
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My Chemistry questions27 multiple-choice questions
Practise
Analytical techniques (IR and MS)
OCR 4.2.4
Revise IR and mass spectrometryInfrared evidence, molecular ions and fragmentation
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Practise infrared spectroscopyBonds, functional groups, spectrum interpretation and technique choice
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Practise mass spectraMass spectra and relative-mass work alongside isotope questions
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My Chemistry questions25 multiple-choice questions
Practise
Mixed Year 12 organic practice
OCR Module 4
Mix Module 4 conversionsAll playable OCR Year 12 conversion topics
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Play Year 12 Reaction DropFast recall of OCR Module 4 reactions and reagents
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Practise Year 12 mechanismsCurly arrows, named mechanisms and conditions
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Compare organic propertiesBoiling points, molecular mass and carbon-chain effects
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More question practice
Polymer formulaeUse atom counts and condensed formulae to practise addition polymers, repeat-unit masses and polyester hydrolysis. Choose Year 12 for addition polymers only.
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Organic mass spectraCalculate molecular-ion and fragment-ion masses, balance stated fragment formulae and combine mass-spectrum evidence with IR. No fragment-structure drawings are assessed.
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