2-butanone (C4H8O), also known as methyl ethyl ketone or MEK, is a major industrial chemical used as a commercial cleaner and solvent for glues, paints, coatings, and printing ink. A

spillage of an unknown colourless chemical was found in the vicinity of an MEK production facility. The unknown compound was analysed by a range of spectroscopic techniques to determine its composition. You are provided with IR, 'H NMR, 13C NMR and mass spectra. 2) With reference to the key aspects of each of the 4 spectra fully explain your answer 1) State if you believe the unknown is MEK 3) Which of the above techniques would be appropriate for determining the relative proportion of MEK and 1-butanol present in a mixture and why?