AQA Jan 2012 Paper 4 Q6

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do not write outside the box a compound x c h o was analysed by infrared spectroscopy and by proton nuclear magnetic resonance spectroscopy the infrared spectrum of x is shown below use table on the data sheet to help you answer the question transmittance wavenumber cm identify the functional group that causes the absorption at cm in the spectrum mark wmp jan chem b the proton n m r spectrum of x consists of singlet peaks do not write outside the box the table below gives the chemical shift for each of these peaks together with their integration values ppm integration value use table on the data sheet to help you answer the following questions use the chemical shift and the integration data to show what can be deduced about the structure of x from the presence of the following in its proton n m r spectrum b i the peak at mark b ii the peak at mark b iii the peak at mark b iv deduce the structure of x c h o mark turn over wmp jan chem

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