Predict the masses and the structures of the most abundant fragments observed in the mass spectra of the following compounds (a) 2-methylpentane (d) 2-methyl-1-phenylpropane (b) 3-methylhex-2-ene (e) cyclohexyl isopropyl ether [cyclohexyl-0-CH(CH,),] (c) 4-methylpentan-2-ol *(h) 3-bromo-2-methylpentane () CH;CH,CH,NHC(CH3)3 tert-butyl propyl amine CH3 acetophenone

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.