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Alkanes Quiz

Total questions: 39

Worksheet time: 53mins

Name
Class
Date
1.

Alkanes are a homologous series of hydrocarbons. They contain only ……………….. bonds.

(a)  

2.

Alkanes are a homologous series of hydrocarbons. They all end in …………..

(a)  

3.

Alkanes are a homologous series of hydrocarbons. They have the general formula ………………………..

(a)  

4.

Alkanes are a homologous series of hydrocarbons. They contain a chain of ……………………….. atoms.

(a)  

5.

Alkanes are a homologous series of hydrocarbons. The longer the chain length the ………………… the boiling point.

(a)  

6.

Name the saturated hydrocarbon with 4 carbons.

4 lines
7.

Name the unsaturated hydrocarbon with 2 carbons.

4 lines
8.

Deduce the monomer and repeating unit for this polymer.

4 lines
9.

What is the monomer for the polymer polyester? What are the uses of polyester?

4 lines
10.

What is the difference between addition polymerisation and condensation polymerisation? Give an example of each type.

4 lines
11.

What do fuels react with as they combust?

4 lines
12.

Iron reacts with oxygen to produce iron oxide (rust). Is this combustion?

4 lines
13.

What is combustion?

4 lines
14.

When does incomplete combustion occur?

4 lines
15.

Is there more or less energy produced in incomplete combustion?

4 lines
16.

Read the information. What can soot do to buildings and pipes? What can soot do to humans and why is that dangerous?

4 lines
17.

Why is carbon monoxide dangerous? Looking at the diagram, explain what carbon monoxide does to red blood cells to make it dangerous.

4 lines
18.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
19.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
20.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
21.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
22.
The "ane" ending in "alkane" tells someone that they are dealing with _________-bonded carbons.
a)
single
b)
double
c)
triple
d)
quadruple
23.
Give the name of this compound...
C3H8
a)
Propene
b)
Butane
c)
Butene
d)
Propane
24.
Hydrocarbons are compounds that contain
a)
Carbon, only
b)
Carbon and Hydrogen, only
c)
Carbon, Oxygen, and Hydrogen, only
d)
Carbon, Oxygen, Hydrogen, and Nitrogen, only
25.
General formula of Alkane is 
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
26.
Classify the compound based on the functional group present.
a)
alkane
b)
alkene
c)
alkyne
d)
aromatic
27.

Which of the following shows the structure of ethene?

a)
b)
c)
d)
28.

Name this compound

a)

methane

b)

ethane

c)

ethene

d)

hydrocarbon

29.

Which homologous series ?

a)

hydrocarbons

b)

organic molecules

c)

alkanes

d)

crude oil

30.

What is the general formula of alkanes ?

a)

CH2

b)

CnH2n

c)

CnH2n+2

d)

CnHn

31.

What is the molecular formula of hexane ?

a)

C3H7

b)

CH

c)

C6H14

d)

CH2

32.

Which is the best description of crude oil ?

a)

a mixture of petrol and bitumen

b)

a mixture of alkanes and alkenes

c)

a mixture of hydrocarbons

d)

a mixture of gases, liquids and solids

33.

how is crude oil separated ?

a)

simple distillation

b)

fractional distillation

c)

filtration

d)

chromatography

34.

which of these statements about alkanes is true ?

a)

as the carbon chain length increases, the compound becomes less viscous

b)

as the carbon chain length increases, the boiling point decreases

c)

short chain length are gases and longer chain lengths are liquids

d)

the longer the carbon chain length, the lighter the colour

35.

for which molecule is the empirical formula the same as the molecular formula ?

a)

b)

c)

d)

36.

The a partially completed equation for cracking is shown.

C11H24 --> 2C2H4 + ______

What is the missing compound ?

a)

C9H20

b)

C9H18

c)

C7H16

d)

C7H14

37.

Four fractions of crude oil are shown.

1. kerosene

2. bitumen

3. refinery gases

4. gasoline

put them in order of increasing boiling point

a)

2 - 1 - 4 - 3

b)

4 - 1 - 3 - 2

c)

3 - 4 - 1 - 2

d)

3 - 1 - 4 - 2

38.

Which phase best describes alkanes?

a)

unsaturated hydrocarbons

b)

a series of isomers

c)

saturated hydrocarbons

d)

saturated carbohydrates

39.

The names of four alkanes are given:

1. propane

2. methane

3. butane

4. ethane

Put them in order of increasing chain length

a)

2 - 4 - 1 - 3

b)

3 - 4 - 1 - 2

c)

3 - 1 - 4 - 2

d)

4 - 2 - 1 - 3

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