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Organic Chemistry

Total questions: 60

Worksheet time: 58mins

Name
Class
Date
1.

What is the general formula of the alkynes?

a)

CnH2n+1

b)

CnH2n+2

c)

CnH2n-1

d)

CnH2n-2

2.
Which of the following could contain a triple bond?
a)
C4H10
b)
C4H8
c)
C4H6
d)
C4H12
3.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
4.
How many hydrogen atoms are in butane
a)
4
b)
6
c)
8
d)
10
5.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
6.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
7.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
8.
Give the name of this compound...
C3H8
a)
Propene
b)
Butane
c)
Butene
d)
Propane
9.
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
10.
Classify the compound based on the functional group present.
a)
alkane
b)
alkene
c)
alkyne
d)
aromatic
11.
General formula of Alkane is 
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
12.

Which of the following shows the structure of ethene?

a)
b)
c)
d)
13.

Which of the following shows the structure of propene?

a)
b)
c)
d)
14.

Which of the following shows the structure of propene?

a)
b)
c)
d)
15.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
16.

Which is the name of this compound?

a)

3-ethyl-2,2-dimethylhex-3-yne

b)

4-ethyl-5,5-methylhex-2-yne

c)

4-butylhex-2-yne

d)

4-ethyl-5,5-dimethylhex-2-yne

17.

Give the IUPAC name for this compound

a)

3-methyl-4-ethylhexane

b)

3-ethyl-4-methylhexane

c)

3-methyl-4-ethylheptane

d)

3-ethyl-4-methylheptane

18.
Which of the following would have the highest melting point?
a)
C3H8
b)
C4H8
c)
C5H12
d)
C22H44
19.

What is the IUPAC name of the compound above?

a)

2,2-methyl-4-methylpentane

b)

4,4-dimethyl-2-methylpentane

c)

2,2-dimethyl-4-methylpentane

d)

2,2,4-trimethylpentane

20.

2,2-dimethyl propane has the same number of carbons as

a)

propane

b)

butane

c)

pentane

d)

hexane

21.

Alkanes and alkenes molecules are held together by

a)

weak covalent bond

b)

weak London forces of attraction

c)

strong covalent bonds

d)

both covalent and London forces

22.

What is the correct structure for 2 - butene?

a)
b)
c)
d)
23.

Name the functional group for this structure:

a)

alkanes

b)

alkenes

c)

alkynes

d)

aromatics

24.

Which type of bonding is present within organic molecules?

a)

Covalent bond

b)

Ionic bond

c)

Metallic bond

d)

Hydrogen bond

25.

What is the name of the alkane shown here?

a)

Methane

b)

Ethane

c)

Propane

d)

Butane

26.

Name this molecule

C3H6

a)

Propane

b)

Propene

c)

Butene

d)

Butane

27.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
28.

Given the formula representing a compound:


Which formula represents an isomer of this compound?

a)
b)
c)
d)
29.
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
30.

Compounds that are composed of the same number and type of atoms but have them arranged in different ways are ___________.

a)

isomers

b)

isotopes

c)

polymers

d)

alkanes

31.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
32.
What is the general formula for saturated hydrocarbons?
a)
CnH2n
b)
CnHn+1
c)
CnH2n+1
d)
CnH2n+2
33.
What is a hydrocarbon that contains only single bonds called? 
a)
organic  
b)
saturated
c)
unsaturated
d)
fully bonded
34.
Saturated hydrocarbons contain single bonds and double bonds
a)
True
b)
False
35.
Unsaturated hydrocarbons contain at least one double or triple bond.
a)
True
b)
False
36.

What is another name for carbon compounds?

a)

carbohydrates

b)

fullerenes

c)

hydrocarbons

d)

organic compounds

37.

Which is NOT typically a property of organic compounds?

a)

low melting points

b)

ability to conduct electricity

c)

insoluble in water

d)

low boiling points

38.

What can you tell about methane (CH4) from its molecular formula?

a)

It contains four carbon atoms.

b)

It contains one hydrogen atom.

c)

It contains four hydrogen atoms.

d)

It forms groups of four molecules.

39.

How many chemical bonds can each carbon atom form?

a)

1

b)

2

c)

3

d)

4

40.
Which is an unsaturated hydrocarbon?
a)
C2H6
b)
C3H8
c)
C4H8
41.
Which is an unsaturated hydrocarbon?
a)
C6H12
b)
C7H16
c)
C6H14
42.
Which is a saturated hydrocarbon?
a)
C5H12
b)
C5H10
c)
C5H8
43.
What is the organic family for propene (propylene)?  
a)
alkanes
b)
alkenes
c)
alkynes
d)
aromatics
44.
Explain, in terms of carbon-carbon bonds, why this hydrocarbon is saturated.
a)
The molecule has the maximum amount of hydrogen it can have.
b)
It is an alkane so it is saturated.
c)
There are only single bonds between the hydrogen and carbon.
d)
There are only single bonds between the carbon.
45.
Which formula represents an unsaturated hydrocarbon?
a)
A
b)
B
c)
C
d)
D
46.
Which formula represents a saturated hydrocarbon?
a)
A
b)
B
c)
C
d)
D
47.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
48.
Organic compounds are compounds contain ______________.
a)
O
b)
C
c)
N
d)
S
49.

Organic compound in the same homologous series have the following characteristic, except ....

a)

Same general formula

b)

Same functional group

c)

Similar chemical properties

d)

Same physical properties

50.

The skeletal formula for CH3CH2CH2CH3 is ….

a)
b)
c)
d)
51.

The structure for organic compounds shown below. The structure which shown the displayed structure is ….

a)
b)
c)
d)
52.

The molecular formula below which shown the alkanes compound is ….

a)

C2H4

b)

C3H7

c)

C4H10

d)

C5H8

53.

The name for this compound is ....

a)

2-ethylpropane

b)

1,1-dimethylpropane

c)

2-methylbutane

d)

3-methylbutane

54.

The name for the compound is ....

a)

2,3-dimethylpropane

b)

3,4-dimethylpropane

c)

2,3-dimethylpentane

d)

3,4-dimethylpentane

55.

The systematic name for the structure shown is

a)

1,1-dimethylpropane

b)

2-methylbutane

c)

3-methylbutane

d)

2-methylpentane

56.

The structure of some hydrocarbon are shown above. The hydrocarbon that classified into saturated compound are ....

a)

F, G, H

b)

F, G, I

c)

G, I, K

d)

F & G

57.

The product resulted if methane substituted by Cl2 is ….

a)

CH3Cl & HCl

b)

CH2Cl & HCl

c)

C2H5Cl & HCl

d)

C2H4Cl2 & HCl

58.

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

a)

n-pentane

b)

2-methylbutane

c)

2,3-dimethylpropane

d)

n-hexane

59.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
60.
Which of the following elements must be present in any organic compound?
a)
Carbon
b)
Oxygen
c)
Potassium
d)
Hydrogen

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