1. When 1,3-butadiene reacts with acrylonitrile, CH2=CHCN, which of the terms below best describes the product mixture?
a) a mixture of two diastereomers b) a single compound c) a racemic mixture
d) optically active e) a mixture of bicyclic compounds
2. Which of the following assigns the correct pKa values to phenol and cyclohexanol?
a) phenol = 6 and cyclohexanol = 10
b) phenol = 10 and cyclohexanol = 6
c) phenol = 4 and cyclohexanol = 10
d) phenol = 6 and cyclohexanol = 10
e) phenol =10 and cyclohexanol = 16
3. The central carbon in a cumulated diene system has what hybridization?
a) s b) sp c) sp2 d) sp3 e) sp3d