Assignment:
Q1. In the mass spectrum of butylbenzene, the base peak occurs at m/z
a. 134
b. 119
c. 105
d. 91
Q2. The number of mono-bromination products of p-xylene is
a. 1
b. 2
c. 3
d. 4
Q3. Which of the following compounds has the lowest boiling point?
a. p-dichlorobenzene
b. o-dichlorobenzene
c. m-dichlorobenzene
d. all boiling points are the same
Q4. The carbanion of cyclopentadiene would be classified as
a. aromatic
b. non-aromatic
c. anti-aromatic
d. none of the above
Q5. Consider the possible isomers of chlorotoluene. Which of the possibilities will result in only two types of aromatic protons by NMR?
a. o-chlorotoluene
b. m-chlorotoluene
c. p-chlorotoluene
d. all of the above