An unknown molecule is detected by GC/MS in the electron impact mode and shows major ions at m/z's of 43, 31, 29, 17, and 15. A minor fragment is seen at a m/z of 60, while chemical ionization with ammonia (NH4) shows one major ion fragment at a m/z of 78 with a very small fragment at m/z of 61. Chemical test indicate that the molecule is some type of alcohol.
a. Identify with chemical structures four of the m/z fragments (mass of relevant atoms is H=1, C=12, N=14, O=16).
b. Based on the mass spectral data what is the unknown molecule's chemical structure and name?