Chemistry Paper 2: Functional Groups etc 0.0 / 5 ? ChemistryFunctional groups: Alkanes, alcohols, carboxylic acids and estersCrude oil, cracking and hydrocarbonsFunctional groups: Alcohols, carboxylic acids and estersPolymersAnalysing substancesGCSEAQA Created by: v.inniCreated on: 25-01-18 18:48 What is C3 H8? Propane 1 of 14 Methane, ethane and propane contain hydrogen,oxygen and carbon, correct or incorrect? Correct 2 of 14 Propane C3H8 is used as a fuel. What are the products of complete combustion? CO2 + H2O 3 of 14 C18 H38 > C6H14 + C4H8 + 2C3H6 + ? C2 H4 4 of 14 What happens to the flammability of the alkanes as their molecules become larger? decreases 5 of 14 Why can alkanes be separated by fractional distillation? They have different boiling points 6 of 14 Saturated hydrocarbons contain C=C double bonds [true or false?} false [they contain C-C single bonds 7 of 14 What functional groups do alkenes contain? C=C double bonds 8 of 14 Give the name, formula and structure of the simplest alkene C2 H4 [Ethene] this is because an alkene needs at least 2 carbon atoms for a double bond. 1 carbon atom cant have a double bond with itself 9 of 14 Give the general formula of alkenes CN H2N 10 of 14 Alkenes are unsaturated .What does this mean? contain C=C double bonds 11 of 14 Name the first four alkenes in the homologous series Ethene, propene, butene and bentene [alenes end in ene] 12 of 14 Describe a test to identify an alkene. Give the result Decolourise bromine water . If the alkene is present the bromine water will decolourise 13 of 14 C2H6 =? C2H4=? Ethane / Ethene 14 of 14
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