11.3 Alkanes
Cambridge (CIE) IGCSE Chemistry Revision Notes
📌 Topic 11: Organic Chemistry
11.1 Formulae, functional groups and terminology
1 Draw and interpret displayed formula of a molecule▼
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2 Write and interpret general formulae: alkanes, alkenes, alcohols, carboxylic acids▼
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3 Identify a functional group▼
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4 State that a homologous series has similar chemical properties due to same functional group▼
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5 Define saturated and unsaturated compounds▼
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11.2 Naming organic compounds
1 Name and draw displayed formulae of methane, ethane, ethene, ethanol, ethanoic acid▼
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11.3 Fuels
1 Name fossil fuels: coal, natural gas, petroleum▼
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2 Describe fractional distillation of petroleum▼
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11.4 Alkanes
1 State alkanes are saturated hydrocarbons with single covalent bonds▼
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2 Describe substitution reaction of alkanes with chlorine▼
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11.5 Alkenes
1 State alkenes are unsaturated hydrocarbons with double covalent bond▼
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2 Describe manufacture of alkenes by cracking▼
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3 Describe test to distinguish saturated/unsaturated: bromine water▼
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11.6 Alcohols
1 Describe manufacture of ethanol by fermentation and catalytic addition▼
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2 Describe combustion of ethanol▼
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3 State uses of ethanol▼
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11.7 Carboxylic acids
1 Describe reactions of ethanoic acid with metals, bases, carbonates▼
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2 Describe formation of ethanoic acid by oxidation of ethanol▼
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3 Describe reaction of carboxylic acid with alcohol to form an ester▼
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11.8 Polymers
1 Define polymers as large molecules from monomers▼
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2 Describe formation of poly(ethene) by addition polymerisation▼
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3 Describe environmental challenges caused by plastics▼
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