AQA Jun 2015 Paper 1 Q6

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do not write outside the box a central heating fuel obtained by the fractional distillation of crude oil contains saturated hydrocarbons with the molecular formula c h give the meaning of the terms saturated and hydrocarbon as applied to saturated hydrocarbons marks saturated hydrocarbon b if the boiler for a central heating system is faulty a poisonous gas may be produced during the combustion of c h write an equation for the reaction that forms this poisonous gas and one other product only mark c explain why the sulfur compounds found in crude oil should be removed from the fractions before they are used for central heating fuel marks wmp jun chem do not write outside the box d a hydrocarbon c h can be cracked to form c h ethene and propene d i write an equation to show this cracking reaction mark d ii suggest one important substance manufactured on a large scale from propene mark d iii draw the displayed formula of the functional group isomer of propene mark e there are many structural isomers with the molecular formula c h draw the structure of trimethylpentane mark question continues on the next page turn over wmp jun chem do not write outside the box f a compound c h reacts with chlorine to give several haloalkanes give the iupac name of the following haloalkane mark h c ch cl ch cl ch ch wmp jun chem

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