Multiple Choice: Circlo the best answer: ( 2 pts each). 1. Which of the following choices contain the most de-shielded proton? A. (CH3)3CCH3 B. CH2CH2 C. CF3H D. (CH3)2CHCH3 E. CF2H2 2. What is the relative area under the peaks of a quartet? A. 1:1:1:1 B. 1:2:2:1 C. 1:3:3:1 D. 1:4:4:1 E. 1:5:5:1 3. What species cannot be detected by a Mass-Spectrometer? A. Radical B. Cation C. Anion D. Radical Cation E. More than one of these 4. A chemist obtains a mass spectrum of an unknown compound and notices a profound M+2 of approximately 49% intensity. Which of the following compounds could this be? A. 3-chloropentane B. 2-bromohexane C. T-butyl alcohol D. Hexane E. 2-iodohexane 5. True or False - Considering carbon NMR: (3 pts). Carbon NMR will often split into multiplets A carboxylic acid carbon will have a chemical shift of 12ppm Carbon NMR utilizes 13C nuelei, whereas 12C nuclei are not observed 6. Draw any small molecule that you would expect to exhibit at least 1 sharp intense peak at 2250cm1 in an IR spectrum. ( 3 pts) 7. For the following three dienes, label which would react the fastest in a Diels-Alder reaction, and label which would react the slowest in a D.A. reaction. (3 pts)