c) An alcohol, X, of molecular formula C3H8O, used as a disinfectant in hospitals, has the following 1HNMR spectrum: [Source: SDBS web: www. sibs,riodb.aist.go.jp (National Institute of Advanced Industrial Science and Technology, 2014)] The three peaks in the HNMR spectrum of X have chemical shift values centred at =4.0,2.3 and 1.2ppm. (iii) Y is an isomer of X containing a different functional group. State the condensed structural formula of Y. [1] (iv) Compare and contrast the expected mass spectra of X and Y using section 28 of the data booklet. [2] One similarity: One difference