Organic Chemistry II

Professor Carl C. Wamser

Chem 335 - Winter Term

Pre-Quiz 12

(must be done in D2L before Wed., Jan. 25, 8:30 am)

1. The active electrophile in the nitration of benzene is

a) benzene

b) NO3

c) NO2

* d) NO2+

e) NO+

2. Friedel-Crafts alkylation of benzene with 1-bromopropane is most likely to lead to which product?

a) toluene

b) ethylbenzene

c) propylbenzene

* d) isopropylbenzene

3. Cl as a substituent would be best described as

a) activating and ortho,para-directing

* b) deactivating and ortho,para-directing

c) activating and meta-directing

d) deactivating and meta-directing

4. Synthesis of m-chloronitrobenzene would be best done by

* a) nitration followed by chlorination

b) chlorination followed by nitration

c) either would work equally well

d) simultaneous chlorination and nitration

5. Synthesis of p-chloronitrobenzene would be best done by

a) nitration followed by chlorination

* b) chlorination followed by nitration

c) either would work equally well

d) simultaneous chlorination and nitration