1. Consider the following compounds. For each compound, 1) calculate the index of unsaturation, 2) list major distinctive R absorptions, 3) indicate whether you expect the compound to absorb light in the UV/visible range, 4) indicate the approximate chemical shift of the 1HNMR signal (or group of signals) you expect to be furthest downfield and 5) predict the number of chemically different protons. NOTE: don't memorize spectral data, but leam how to integrate it and use it for the identification of a compound. a) 1-bromohexane b) 2-methylpentane c) methylcyclopentane d) 4-methyl-(E)2-pentene e) 3-ethyl-1-cyclopentene f) benzyl (2-methylbutyl) ether g) butyrophenone h) decanal i) 1-chloropropanone (=1-chloroacetone)