Cliffs AP Chemistry, 3rd Edition

Questions 6–10

A. Addition reaction

B. Elimination reaction

C. Condensation reaction

D. Substitution reaction

E. Polymerization reaction

6. C 2 H 5 OH(aq) + HCl(aq) →C 2 H 5 Cl(l) + H 2 O(l)

Answer: D

A substitution reaction occurs when an atom or group of atoms in a molecule is replaced by a
different atom or group.

Br Br

||

7. CH 2 == CH 2 + Br 2 →CH 2 CH 2

Answer: A

In addition reactions, a small molecule adds across a double or triple bond.

8. C 2 H 5 Cl(g) C 2 H 4 (g) + HCl(g)

Answer: B

An elimination reaction involves the elimination of two groups from adjacent carbon atoms,
converting a saturated molecule into an unsaturated molecule. It is essentially the reverse of an
addition reaction.

9. CH 3 OH(l) + CH 3 OH(l)CH 3 OCH 3 (l) + H 2 O(l)

Answer: C

acid

+

H

C

H

H

H

H C Cl H Cl

H

H

H

H

CC

base

+

H

C

H

O HH+++Cl− H Cl

H

C H O H

H

H

C

H

H

C

H

H

Organic Chemistry