Identify this substance!
NMR spectrum
Mass spectrum
Mass: $C_3H_7^+$ 2 possibilities: $CH_3CH_2CH_2Br$ ou $CH_3CHBrCH_3$ NMR : In the first case, we should find a triplet for the hydrogen atoms of $-CH_2Br$, which is not there! It's 2-bromopropane.