wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

alkane

Total questions: 15

Worksheet time: 13mins

Name
Class
Date
1.

Light or heat is required for which step in the halogenation of alkane?

a)

initiation

b)

propagation

c)

termination

2.
What is the general formula of an alkane
a)
2n+2
b)
CnH2n+2
c)
CnH2n
d)
CnHn
3.

Which of the following has the highest boiling point?

a)

heptane

b)

pentane

c)

nonane

4.
Name the compound.
a)
hexane
b)
2,3-dimethylbutane
c)
ethylbutane
d)
2,2-dimethylbutane
5.

What is the name for this compound?

a)

4 - propylnonane

b)

4 - ethylnonane

c)

4 - propyloctane

d)

4 - ethyloctane

6.

The alkanes which will have the highest boiling point is ….

a)

n-pentane

b)

2-methylbutane

c)

2,3-dimethylpropane

d)

n-hexane

7.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
8.

Looking at the chemical formulae of these compounds, which is an alkane?

a)

C3H8

b)

C2H4

c)

C5H10

d)

C4H8

9.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
10.

What is the IUPAC nomenclature of this structure?

a)

sec-butylcyclohexane

b)

tert-butylcyclohexane

c)

sec-butylhexane

d)

tert-butylcyclohexane

11.

What is the IUPAC nomenclature of this structure?

a)

4-octylcyclopentane

b)

4-cyclopentyloctane

c)

4-sec-octylcyclopentane

d)

4-pentylcyclooctane

12.

What is the IUPAC nomenclature of this structure?

a)

1-cyclobutyl-2,3-dimethylcyclohexane

b)

2,3-dimethyl-1-cyclobutylcyclohexane

c)

1-butyl-2,3-methylcyclohexane

d)

1-cyclobutyl-2,3-dimethylhexane

13.

Which of the following statements concerning the reaction of methane with bromine is/are correct?

(1) It is an addition reaction.

(2) It is a substitution reaction.

(3) A similar reaction will occur if propane is used instead of methane.

a)

(1) only

b)

(2) only

c)

(1) and (3) only

d)

(2) and (3) only

14.
Why do alkane not dissolve in water?
a)
they are less dense than water
b)
they have low melting points
c)
they are non-polar compounds 
d)
they are chemically less reactive
15.

Which correctly represents an incomplete combustion of pentane?

a)

C5H12 + 8O2 ⟶ 5CO2 + 6H2O

b)

C5H12 + 8O2 ⟶ 4CO + CO2 + 6H2O

c)

C5H12 + 6O2 ⟶ 4CO + CO2 + 6H2O

d)

C5H12 + 5O2 ⟶ 4CO + CO2 + 4H2O + 2H2