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Worksheets

Hydrcarbon Practice Database

Total questions: 162

Worksheet time: 2hrs 32mins

Name
Class
Date
1.

Is the name of single bonded, saturated hydrocarbons.

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

Tanins

2.

Is the name of doubled bonded, unsaturated hydrocarbons.

a)

Alkanes

b)

Alkenes

c)

Allkynes

d)

Tanins

3.

Is the name of triple bonded, unsaturated hydrocarbons.

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

Tanins

4.

is the alkene with 3 carbons in its chain.

a)

Ethene

b)

Propene

c)

Methene

d)

Decene

5.

Is the simplest alkane

a)

Ethane

b)

Methane

c)

Propane

d)

Decane

6.

What is the correct name for the alkyne shown?

a)

butyne

b)

1-butyne

c)

2-butyne

d)

1-methyl-1-propyne

7.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
8.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
9.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
10.
Which of the following elements must be present in any organic compound?
a)
Carbon
b)
Oxygen
c)
Potassium
d)
Hydrogen
11.
Which of the following compounds is an example of hydrocarbon?
a)
CO2
b)
C2H6
c)
C2H5OH
d)
CH3COOH
12.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
13.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
14.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
15.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
16.
Name the organic family for this structure:
a)
alkanes
b)
alkenes
c)
alkynes
d)
aromatics
17.
Name the organic family for this structure:
a)
alkanes
b)
alkenes
c)
alkynes
d)
aromatics
18.
What is the suffix for single bonded hydrocarbons?
a)
-yne
b)
-ene
c)
-ane
d)
-one
19.
Give the name of this compound...
C3H8
a)
Propene
b)
Butyne
c)
Butene
d)
Propane
20.

What chemical is this? (C5H10)

a)

Pentene

b)

Pentane

c)

Hexane

d)

Heptene

21.

How many chemical bonds can each carbon atom form?

a)

one

b)

two

c)

three

d)

four

22.
Which of the following could contain a triple bond?
a)
C4H10
b)
C4H8
c)
C4H6
d)
C4H12
23.
Which one of the following is saturated?
a)
water
b)
C4H8
c)
C4H10
d)
C5H8
24.
Which of the following does not contain only carbon and hydrogen
a)
alkanes 
b)
alkenes
c)
alkynes
d)
alkanols
25.

Hydrocarbons are compounds that contain

a)

only carbon

b)

only carbon and hydrogen

c)

only carbon, oxygen, and hydrogen,

d)

only carbon, oxygen, hydrogen, and nitrogen

26.

What is the general formula of the alkenes?

a)

CnH2n+1

b)

CnH2n+2

c)

CnH2n

d)

CnH2n-2

27.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
28.
Which formula represents an unsaturated hydrocarbon?
a)
A
b)
B
c)
C
d)
D
29.

What is the suffix for a hydrocarbon that contains a double bond ?

a)

-ol

b)

-ene

c)

-ane

d)

-one

30.
The molecular formula for Heptane is
a)
C4H10
b)
C7H18
c)
C5H12
d)
C7H16
31.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
32.

What is the correct name for the alkyne shown?

a)

butyne

b)

but-1-yne

c)

but-2-yne

d)

1-methyl-1-propyne

33.

The general formulas for alkanes, alkenes and alkynes are:

a)

alkane: CnH2n+2

alkene: CnH2n

alkyne: CnH2n-2

b)

alkane: CnH2n

alkene: CnH2n+2

alkyne: CnHn+4

c)

alkane: CnH2n-2

alkene: CnH2n

alkyne: CnH2n+2

d)

alkane: CnH2n+2

alkene: CnH2n

alkyne: CnHn-4

34.

What is the correct structure for but-2-ene?

a)
b)
c)
d)
35.
Classify the compound based on the functional group present.
a)
alkane
b)
alkene
c)
alkyne
d)
aromatic
36.

What chemical is this? (C5H10)

a)

Pent-1-ene

b)

Pent-5-ene

c)

Pent-2-ene

d)

pent-4-ene

37.

This prefix means 7

a)

but

b)

hept

c)

hex

d)

non

38.

is the alkene with 3 carbons in its chain.

a)

Ethene

b)

Propene

c)

Methene

d)

Decene

39.

Match the following

a)

alkane

1.

CnH2n+2

b)

alkene

2.

CnH2n

c)

Ethene

3.

C2H4

d)

alkyne

4.

CnH2n-2

40.
Which of the following elements must be present in any organic compound?
a)
Carbon
b)
Oxygen
c)
Potassium
d)
Hydrogen
41.
Which is an organic compound?
a)
Carbon Dioxide
b)
Carbon Monoxide
c)
Carbonates
d)
Ethane
42.
Which of the following compounds is an example of hydrocarbon?
a)
CO2
b)
C2H6
c)
C2H5OH
d)
CH3COOH
43.
At which pipe: M or N are hydrocarbons with lower boiling points collected?
a)
M
b)
N
44.
The following compounds have a molecular formula of
a)
CnH2n+2
b)
CH4
c)
C6H14
d)
CH3CH2CH2CH2CH2CH3
45.
Which compound is inorganic?
a)
Glucose (C₆H₁₂O₆)
b)
Ethane (C₂H₆)
c)
Carbon Dioxide (CO₂)
d)
Stearic Acid (C₁₈H₃₆O₂)
46.

propyl is a....

a)

three carbon chain

b)

three carbon side chain

c)

triple bond

47.

How many methyl groups are on the following molecule?

a)

1

b)

2

c)

3

d)

4

48.

How many carbons are in the longest chain?

a)

7

b)

8

c)

9

d)

10

49.

What group(s) is/are found on the following molecule?

a)

methyl

b)

ethyl

c)

butyl

d)

methyl and butyl

e)

all of the above

50.

What is wrong with the name 2,4-methylhexane

a)

inappropriate use of commas

b)

inappropriate use of dashes

c)

a prefix is missing

d)

a space is missing

51.
a)
2,3-dimethyl-4,4-diethyl heptane
b)
2,3-methyl-4,4-ethyl heptane
c)
4,4-ethyl-2,3-methyl heptane
d)
4,4-diethyl-2,3-dimethyl heptane
52.
a)

4-ethyl-6-methylnonane

b)

3-propyl-5-methyloctane

c)

2,4-dipropylhexane

d)

4-ethyl-2-propylheptane

53.

What is the correct name for the following compound?

a)

3,4-dimethylheptane

b)

4-methyl-5-ethylhexane

c)

3-methyl-4-propylpentane

d)

4,5-dimethylheptane

54.

What is the correct name for the alkyne shown?

a)

butyne

b)

1-butyne

c)

2-butyne

d)

1-methyl-1-propyne

55.

A substance with a high boiling point . . .

a)

changes rapidly from a liquid to a gas at a low temperature.

b)

changes rapidly from a liquid to a gas at a high temperature.

c)

flows easily.

d)

doesn't flow easily.

e)

is easy to ignite and burn.

56.

The boiling point of hydrocarbons . . .

a)

increases with increasing molecular size.

b)

decreases with increasing molecular size.

c)

is not affected by molecular size.

57.

The viscosity of hydrocarbons depends on the size of their molecules. What is viscosity?

a)

a measure of how difficult it is for a substance to flow

b)

a measure of how easy it is to ignite and burn

c)

a substance the temperature at which a substance rapidly changes state from a liquid to a gas

58.

A substance with a low viscosity . . .

a)

evaporates at a low temperature.

b)

evaporates at a high temperature.

c)

flows easily.

d)

doesn't flow easily.

e)

is easy to ignite and burn.

59.

The flammability of hydrocarbons depends on the size of their molecules. What is flammability?

a)

a measure of how difficult it is for a substance to flow

b)

a measure of how easy it is to ignite and burn

c)

a substance the temperature at which a substance rapidly changes state from a liquid to a gas

60.

A highly flammable substance . . .

a)

evaporates at a high temperature.

b)

flows easily.

c)

doesn't flow easily.

d)

is easy to ignite and burn.

e)

is difficult to ignite and burn

61.

Crude oil is a mixture of a very large number of compounds. Most of the compounds in crude oil are hydrocarbons. What is a hydrocarbon?

a)

a compound that contains only hydrogen and carbon atoms

b)

a compound that contains hydrogen, carbon and other elements

c)

a compound with a carbon backbone

62.

Where is crude oil found?

a)

between layers of impermeable rock

b)

as seams of rock

c)

in the atmosphere

63.

What was crude oil formed from?

a)

plankton

b)

plants

c)

carbon dioxide

64.

Where in the fractionating column do the hydrocarbons with the highest boiling points condense?

a)

at the top of the fractionating column

b)

in the middle of the fractionating column

c)

at the bottom of the fractionating column

65.

How does fuel oil compare to petrol?

Select two statements.

a)

Fuel oil has a higher boiling point than petrol.

b)

Fuel oil has a lower boiling point than petrol.

c)

Fuel oil contains larger hydrocarbon molecules than petrol.

d)

Fuel oil contains smaller hydrocarbon molecules than petrol.

66.

Combustion is a scientific term for ________.

a)

burning

b)

dissolving

c)

rusting

67.

Select the correct word equation for the combustion of a fuel.

A

a)

A

b)

B

c)

C

68.

Given the formula representing a compound:


Which formula represents an isomer of this compound?

a)
b)
c)
d)
69.

Which formulas represent compounds that are isomers of each other?

a)
b)
c)
d)
70.

Given the structural formulas:


Which two formulas represent compounds that are isomers of each other?

a)

A and B

b)

A and C

c)

B and D

d)

C and D

71.

Which structural formula represents a molecule that is not an isomer of pentane?

a)
b)
c)
d)
72.

Which compound has an isomer?

a)
b)
c)
d)
73.
Alkanes are known as saturated hydrocarbons because they contain only carbon-hydrogen single bonds.
a)
True
b)
False
74.

The boiling points of alkane molecules increase as their molecular sizes increase.

a)

True

b)

False

75.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
76.

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

a)

20

b)

22

c)

40

d)

42

77.

What is the general formula of an alkane?

a)

2n+2

b)

CnH2n+2

c)

CnH2n

d)

CnHn

78.
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
79.
Give the name of this compound...
C3H8
a)
Propene
b)
Butane
c)
Butene
d)
Propane
80.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
81.

What is the name of C5H12?

a)

Pentane

b)

Hexane

c)

Butane

d)

Heptane

82.

Which of the following has the highest boiling point?

a)

heptane

b)

pentane

c)

nonane

83.

All compounds containing carbon are organic compounds

a)

True

b)

False

84.

Hydrocarbon boiling points increase when branching increases.

a)

true

b)

false

85.

Alkanes are the simplest forms of hydrocarbons.

a)

true

b)

false

86.
a)

propane

b)

butane

c)

pentane

87.
a)

propane

b)

butane

c)

pentane

88.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
89.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
90.
Which of the following elements must be present in any organic compound?
a)
Carbon
b)
Oxygen
c)
Potassium
d)
Hydrogen
91.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
92.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
93.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
94.

What is the general formula of the alkenes?

a)

CnH2n+1

b)

CnH2n+2

c)

CnH2n

d)

CnH2n+1OH

95.

Name this member of alkene

a)

Butyne

b)

Ethane

c)

Propane

d)

Propene

96.

Which one of the following is saturated hydrocarbon?

a)

Alkyne

b)

Alkene

c)

Alkane

97.

What type of hydrocarbon has the general formula CnH2n-2?

a)

Alkane

b)

Alkene

c)

Alkyne

d)

Aromatic

98.

What type of hydrocarbon is characterized by the presence of a double bond?

a)

Alkane

b)

Alkene

c)

Alkyne

d)

Aromatic

99.

How many Hydrogen atoms are needed in an alkane that has 4 carbon atoms?

a)

4

b)

6

c)

8

d)

10

100.

How many Hydrogen atoms are needed in an alkyne that has 2 carbon atoms?

a)

2

b)

4

c)

6

d)

8

101.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
102.
What is the general formula for saturated hydrocarbons?
a)
CnH2n
b)
CnHn+1
c)
CnH2n+1
d)
CnH2n+2
103.

Which two of the following molecules are hydrocarbons?

a)

carbon dioxide

b)

methane

c)

ethanol

d)

butene

104.

Which formulas represent compounds that are isomers of each other?

a)
b)
c)
d)
105.
Which of the following is true about structural isomers?
a)
Have the same molecular formula
b)
Have different physical and chemical properties.
c)
Have the same number of elements
d)
all of the above
106.
Which of the following could contain a triple bond?
a)
C4H10
b)
C4H8
c)
C4H6
d)
C4H12
107.

This prefix means 7

a)

but

b)

hept

c)

hex

d)

non

108.

This prefix means 7

a)

but

b)

hept

c)

hex

d)

non

109.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
110.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
111.
Which of the following compounds is an example of hydrocarbon?
a)
CO2
b)
C2H6
c)
C2H5OH
d)
CH3COOH
112.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
113.

What is the suffix for double bond hydrocarbons ?

a)

-ol

b)

-ene

c)

-ane

d)

-one

114.

Which alkane has the formula CH4?

a)

methane

b)

ethane

c)

propane

d)

butane

115.

Which two of the following molecules are hydrocarbons?

a)

carbon dioxide

b)

methane

c)

ethanol

d)

butene

116.

How many carbon atoms are in a molecule of pentyne?

a)

3

b)

4

c)

5

d)

6

117.

How many carbon atoms are in a molecule of hexene?

a)

3

b)

4

c)

5

d)

6

118.
C stands for?
a)

cat

b)

calcium

c)

carbon

d)

crypton

119.

How many valence electrons does carbon have

(a)  

120.

How many chemical bonds can each carbon atom form?

a)

one

b)

two

c)

three

d)

four

121.
Which of the following elements is required in an organic compound?
a)

nitrogen

b)

oxygen

c)

carbon

d)

sodium

122.

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

123.

General formula of Alkane is

a)

CnH2n+1OH

b)

CnH2n+1COOH

c)

CnH2n+2

d)

CnH2n

124.

How many carbon atoms are in propane?

a)

1

b)

2

c)

3

d)

4

125.

How many hydrogen atoms are in propane?

a)

4

b)

6

c)

8

d)

10

126.

How many carbon atoms are in butane?

a)

1

b)

2

c)

3

d)

4

127.

How many hydrogen atoms are in butane?

a)

4

b)

6

c)

8

d)

10

128.

Give the name of this compound...

C3H8?

a)

Pentane

b)

Hexane

c)

Propane

d)

Butane

129.

The molecular formula for Heptane is..

a)

C4H10

b)

C5H12

c)

C8H18

d)

C7H16

130.

What is the molecular formula for cyclopropane?

a)
b)
c)
d)
131.

What is the molecular formula of cyclopentane?

a)
b)
c)
d)
132.

Name this molecule

a)

butane

b)

propane

c)

cyclobutane

d)

cyclopentane

133.

Name this molecule: C6H12

a)

hexane

b)

heptane

c)

cycloheptane

d)

cyclohexane

134.

Name this molecule

a)

nonane

b)

decane

c)

cycloheptane

d)

cyclononane

135.

What is the name of the compound? And how many carbons atom are in the compound?

a)

Cyclononane, 9 carbon atom

b)

Cyclohexane, 6 carbon atom

c)

Cyclodecane, 10 carbon atom

d)

Cyclobutane, 4 carbon atom

136.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
137.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
138.
The "ane" ending in "alkane" tells someone that they are dealing with _________-bonded carbons.
a)

single

b)

double

c)

triple

d)

quadruple

139.

Name this molecule:

a)

methane

b)

ethane

c)

propane

d)

butane

140.

Give the name of this compound...

C3H8?

a)

Pentane

b)

Hexane

c)

Propane

d)

Butane

141.

Identify the structure for C7H16

a)

b)
c)

d)

142.

What is the molecular formula for cyclopropane?

a)
b)
c)
d)
143.

Which is the structure for C4H8?

a)
b)
c)

d)

cyclopentane

144.

Name this molecule

a)

hexane

b)

heptane

c)

cycloheptane

d)

cyclohexane

145.

Name this molecule

a)

nonane

b)

decane

c)

cycloheptane

d)

cyclononane

146.

Given the formula representing a compound:


Which formula represents an isomer of this compound?

a)
b)
c)
d)
147.

Which structural formula represents a molecule that is not an isomer of pentane?

a)
b)
c)
d)
148.

Which of the following is a saturated hydrocarbon?

a)

ethene

b)

heptane

c)

propyne

d)

methanol

149.

Is the name of doubled bonded, unsaturated hydrocarbons.

a)

Alkanes

b)

Alkenes

c)

Allkynes

d)

Tanins

150.

Is the name of triple bonded, unsaturated hydrocarbons.

a)

Alkanes

b)

Alkenes

c)

Alkynes

d)

Tanins

151.
Name the organic family for this structure:
a)

alkanes

b)

alkenes

c)

alkynes

d)

aromatics

152.
Name the organic family for this structure:
a)

alkanes

b)

alkenes

c)

alkynes

d)

aromatics

153.

Which of the following is the reaction used to make polymers?

a)

Esterification

b)

Polymerization

c)

Saponification

d)

Neutralization

154.

The given structure is an example of ...

a)

Expanded structure

b)

Condensed structure

c)

Skeletal structure

155.

A single unit that can bond to other single units to form a polymer is a:

a)

Lego

b)

Monounits

c)

Monopoly

d)

Monomer

156.

A very large organic molecule made up of chains of smaller molecules is called a

a)

monomer

b)

polymer

c)

saturated hydrocarbon

d)

substituted hydrocarbon

157.
Monomers combine to form ________ through the process of ________.
a)
polymers; hydrolysis
b)
polymers; dehydration synthesis
c)
monomers; hydrolysis
d)
monomers; dehydration synthesis
158.
The four organic compounds found in living things are?
a)

Carbohydrates, Lipids, Nucleic Acids, and Oxygen

b)

Carbohydrates, Lipids, Proteins, and Carbon

c)

Carbohydrates, Lipids, Proteins, Nucleic Acids

d)

Carbon, Lipids, Proteins, Nucleic Acids

159.

General formula of a cycloalkane is

a)

CnH2n+1OH

b)

CnH2n+1COOH

c)

CnH2n+2

d)

CnH2n

160.

Select all the natural polymers

a)

rubber

b)

polyvinylchloride

c)

DNA

d)

polystyrene

161.

Match the type of formula shown in the image.

a)

CH3(CH2)6CH3

1.

Condensed Formula

b)
2.

Structural Formula

c)
3.

Line Diagram/Skeletal Formula

d)

C5H12

4.

molecular formula

162.
Name the compound.
a)
hexane
b)
2,3-dimethylbutane
c)
ethylbutane
d)
2,2-dimethylbutane

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