A student has the following eight compounds in unbalance vials. Identify each structure by matching it with its characteristic IR or MS trail.

A strong and broad IR peak at -3400 cm A strong MS peak at M-127 m/z and a weak peak at 127 m/z An intense and sharp IR peak at -1710 cm M+2 peak -1/3 the height of the M peak CI OH Br A sharp IR peak with medium intensity at -3300 cm-1 A sharp IR peak with medium intensity at -3100 cm- M+2 peak -equal to the height of the M peak An odd molecular ion