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Worksheets

Homologous series

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Organic compounds are classified according to their

a)

groups

b)

period

c)

chemical reactions

d)

homologous series

2.

All members of a homologous series are similar in terms of

a)

structural formula

b)

molecular formula

c)

physical properties

d)

chemical properties

3.

Which of the following pairs of general formula and homologous series is correct?

a)

A

b)

B

c)

C

d)

D

4.

Which pair of compounds is classified in the same homologous series?

a)

A

b)

B

c)

C

d)

D

5.

What is the general formula for alcohols?

a)

CnH2n

b)

CnH2n+2

c)

CnH2n+1OH

d)

CnH2n+1COOH

6.

Compound Q has the following properties.

- soluble in water

- boiling point is 780C

What is compound Q

a)

Ethane

b)

Ethene

c)

Ethanol

d)

Ethanoic acid

7.

What functional group is shown?

a)

hydroxyl

b)

carboxyl

c)

methyl

d)

carbonyl

8.

Name this molecule:

a)

methane

b)

ethane

c)

propane

d)

butane

9.

Name this molecule:

a)

methane

b)

ethane

c)

propane

d)

butane

10.

Name this molecule:

a)

methane

b)

ethane

c)

propane

d)

butane

11.

If an alkane has 10 carbon atoms, how many hydrogen atoms will it have?

a)

20

b)

22

c)

40

d)

42

12.

Is the name of single bonded, saturated hydrocarbons.

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

Tanins

13.

Is the name of doubled bonded, unsaturated hydrocarbons.

a)

Alkanes

b)

Alkenes

c)

Allkynes

d)

Tanins

14.

is the alkene with 3 carbons in its chain.

a)

Ethene

b)

Propene

c)

Methene

d)

Decene

15.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
16.
Which of the following elements must be present in any organic compound?
a)
Carbon
b)
Oxygen
c)
Potassium
d)
Hydrogen
17.
Which of the following compounds is an example of hydrocarbon?
a)
CO2
b)
C2H6
c)
C2H5OH
d)
CH3COOH
18.
Give the name of this compound...
C3H8
a)
Propene
b)
Butyne
c)
Butene
d)
Propane
19.

What is the general formula for saturated hydrocarbons?

a)

CnH2n

b)

CnHn+1

c)

CnH2n+1

d)

CnH2n+2

20.

What is the name of this hydrocarbon?

a)

1 - butane

b)

1 - butene

c)

2 - butane

d)

2 - butene