OCR•GCSE•Chemistry
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Global Challenges
Organic chemistry, atmosphere, resources, and sustainability
Practice 88 subtopics in Global Challenges. All questions match the OCR GCSE specification.
About Global Challenges
Global Challenges is a key topic in the OCR GCSE Chemistryspecification. This topic covers organic chemistry, atmosphere, resources, and sustainability.
Master all 88 subtopics below with unlimited AI-generated questions. Each subtopic page includes sample questions and the ability to generate unlimited practice questions with detailed solutions.
All Subtopics (88)
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HydrocarbonsCrude oilFinite resourcesFractional distillationFractions from crude oilUses of fractionsAlkanesGeneral formula of alkanesNames and formulae of alkanesDisplayed formulaeProperties of hydrocarbonsBoiling point trendsViscosity trendsFlammability trendsComplete combustionIncomplete combustionCarbon monoxideParticulatesCrackingThermal crackingCatalytic crackingProducts of crackingAlkenesGeneral formula of alkenesThe C=C double bondTest for alkenesAddition reactionsAddition polymerisationPoly(ethene)Poly(propene)Drawing polymersAlcoholsFunctional group of alcoholsProperties of alcoholsUses of alcoholsCarboxylic acidsFunctional group of carboxylic acidsProperties of carboxylic acidsEstersFormation of estersUses of estersEvolution of the atmosphereEarly atmosphereVolcanic activityDevelopment of atmospherePhotosynthesisFormation of fossil fuelsFormation of sedimentary rocksComposition todayGreenhouse gasesCarbon dioxideMethaneWater vapourThe greenhouse effectGlobal warmingClimate changeEvidence for climate changeEffects of climate changeCarbon footprintReducing carbon emissionsAtmospheric pollutantsSulfur dioxideNitrogen oxidesParticulatesCarbon monoxideAcid rainEffects of acid rainGlobal dimmingNatural resourcesSynthetic materialsSustainable developmentFinite resourcesRenewable resourcesPotable waterWater treatmentSedimentationFiltrationChlorinationDesalinationDistillationReverse osmosisSewage treatmentLife cycle assessmentStages of LCAComparing LCAsReduce, reuse, recycleRecycling metalsRecycling polymers
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