Describe the appearance of the 1H NMR spectrum of each of the following compounds. How many signals would you expect to find, and into how many peaks will each signal be split?
(a) 1,1,1-Trichloroethane
(b) 1,1,2-Trichloroethane
(c) 1,2,2-Trichloropropane
(d) 1,1,1,2-Tetrachloropropane