Edexcel Jun 2017 Paper 5 Q9

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provided by A X-ray diffraction. 9 Evidence that the carbon-carbon bonds in benzene are all the same length is infrared spectroscopy. C a comparison of the enthalpy changes for the addition of hydrogen to benzene and the theoretical compound cyclohexa-1,3,5-triene. D a comparison of the rates of reaction of benzene and alkenes with bromine. 10 The product of the reaction of benzene with sulfur trioxide dissolved in concentrated sulfuric acid is (Total for Question 9 = 1 mark) A C B C C C D C 6H5SO3 6H5SO3H 6H5SO4 6H5HSO4 11 Benzene reacts with ethanoyl chloride in the presence of aluminium chloride. The equation for the reaction of ethanoyl chloride with aluminium chloride is (Total for Question 10 = 1 mark) A CH 3COCl + AlCl3 (cid:111) [CH3CO] + AlCl4 + B CH 3COCl + AlCl3 (cid:111) [CH3CO]+ + AlCl4C CH 3COOCl + AlCl3 (cid:111) [CH3COO] + AlCl4 + D CH 3COOCl + AlCl3 (cid:111) [CH3COO]+ + AlCl412 In the high resolution proton nmr spectrum of butanone, C2H5COCH3, there will be (Total for Question 11 = 1 mark) A one doublet and two triplets. B one quartet and one sextet. C one singlet, one triplet and one quartet. D one singlet, one doublet and one triplet. (Total for Question 12 = 1 mark) A E R A S I H T N I E T I R W T O N O D A E R A S I H T N I E T I R W T O N O D A E R A S I H T N I E T I R W T O N O D *P48070A0528* Turn over<br />

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