CHEMISTRY – OHD 1010-2
Test #2
Chapters 5 – 8 (60 points)

(20 pt) 1. Write structural formulae for the following compounds and indicate which chemical group they belong to (alkane, alkene, aromatic hydrocarbon, organic halide, alcohol, phenol, ester, ether, aldehyde, ketone, carboxylic acid, amine or amide).
(2 marks each)

No. Name Structure Chemical Group a. n-butane

b. propanol

c. formaldehyde

d. 2, 3, 5-trinitrotoluene

e. carbon tetrabromide

f. Acetic acid

g. Dimethyl ether

h. 3-hexene

i. 1, 2, 4-tribromobenzene

j. 3, 3-dimethyl-1-pentene

(20 pts) 2. Write correct names for the following: (2 marks each)

a. b. c.

CH3CH2CH2CH2CH2OH d.

CH3 CH2CH=CHCH2CH3 e.

f.

g.

h.

i.

j.

(4 pts) 3. Compare the reactivity of alkenes and alkynes by discussing the difference in structures that makes these two classes react differently. (2 marks each)

a) Alkenes: ______________________________________________________________________

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b) Alkynes: ______________________________________________________________________

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(6 pts) 4. Write a balanced equation for the reaction with bromine (Br2) under suitable conditions, of: (3 marks each)

a) propane

b) propene

(2 pts) 5. Give…