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Organic Chemistry 1

Total questions: 122

Worksheet time: 6hrs 26mins

Name
Class
Date
1.

In organic chemistry, commas separate....

a)

numbers

b)

names from numbers

2.
In organic chemistry, dashes separate....
a)
numbers
b)
names from numbers
3.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
4.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
5.
Give the name of this compound...
C3H8
a)
Propene
b)
Butane
c)
Butene
d)
Propane
6.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
7.

How many structural isomers does C5H12 have?

a)

2

b)

3

c)

5

d)

9

8.

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

9.
How many hydrogen atoms are in butane
a)
4
b)
6
c)
8
d)
10
10.
The molecular formula for Heptane is
a)
C4H10
b)
C7H18
c)
C5H12
d)
C7H16
11.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
12.

Give IUPAC nomenclature for this compound

a)

2,7-dimethyl-5-ethyloctane

b)

5-ethyl-2,7-dimethyloctane

c)

2,7-dimethyl-3-ethyloctane

d)

4-ethyl-2,7-dimethyloctane

13.
Methyl has the molecular formula
a)
CH4
b)
CH3
c)
CH
d)
CH2
14.

Which of the following has the highest boiling point?

a)

heptane

b)

pentane

c)

nonane

15.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
16.
What is the suffix for single bonded hydrocarbons?
a)
-yne
b)
-ene
c)
-ane
d)
-one
17.
Name the compound
a)
3,4 dipropyl hexane
b)
3,4-diethyl 3,4-dimethyl hexane
c)
Twelvane
d)
3,3,3,4,4,4 hexamethyl hexane
18.
Name the compound
a)
3,4 dimethyl octane
b)
3,4 diethyl octane
c)
butyl octane
d)
twelvane
19.
The name of the structure shown is :
a)
methane
b)
butane
c)
ethane
d)
propane
20.
The name of the structure shown is :
a)
methane
b)
butane
c)
ethane
d)
propane
21.
The name of the structure shown is :
a)
methane
b)
butane
c)
ethane
d)
propane
22.
The name of the structure shown is :
a)
methane
b)
butane
c)
ethane
d)
propane
23.
The name of the structure shown is :
a)
pentane
b)
hexane
c)
heptane
d)
octane
24.
The name of the structure shown is :
a)
pentane
b)
hexane
c)
heptane
d)
octane
25.
The name of the structure shown is :
a)
pentane
b)
hexane
c)
heptane
d)
octane
26.
The name of the structure shown is :
a)
pentane
b)
hexane
c)
heptane
d)
octane
27.

Which are the following are all alkanes?

a)

methane, ethane, propane

b)

methane, ethene, propene

c)

methene, ethene, propene

d)

ethene, propene, butene

28.

What term is given to a compound which contains atoms of carbon and hydrogen only?

a)

alkene

b)

hydrocarbon

c)

alkane

d)

saturated

29.

What term describes alkane molecules that contain C-C single bonds?

a)

saturated

b)

unsaturated

30.
How many hydrogen atoms are in butane
a)
4
b)
6
c)
8
d)
10
31.
Organic compounds are compounds contain ______________.
a)
O
b)
C
c)
N
d)
S
32.
How many bonds does carbon make?
a)
1
b)
2
c)
3
d)
4
33.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
34.

Name.

a)

3-ethylpentane (aka ethylpentane)

b)

3-dimethylpentane

c)

3-methylpentane

d)

other

35.

Name.

a)

4-methylhexane

b)

3-methylhexane

c)

1-ethyl-2-methylbutane

d)

other

36.

Name.

a)

1, 2-diethyl-3-methylbutane

b)

4-ethylheptane

c)

4-methylseptane

d)

other

37.

Name.

a)

4-ethyl-3, 3, 4--methylheptane

b)

4-ethyl-4, 5, 5-trimethylheptane

c)

4-ethyl-3, 3, 4--trimethylheptane

d)

other

38.

Name.

a)

1-ethyl-1, 2, 2, 3-butmethyloctane

b)

4-ethyl-2, 3, 3, 4-tetramethyloctane

c)

1, 3-diethyl-2, 2, 3-trimethylheptane

d)

other

39.

Name.

a)

3, 4, 5-triethyl-4-methylnonane

b)

3, 4, 5-tridiethyl-4-methylnonane

c)

4-methyl-3, 4, 5-triethylnonane

d)

other

40.

Name.

a)

4, 5-ethyl-3, 4-methyl-4-propylheptane

b)

4, 5-diethyl-3, 4-dimethyl-4-propylheptane

c)

2, 3, 4-triethyl-3-methyl-4-propylheptane

d)

other

41.

Name.

a)

3, 4, 5-trimethyloctane

b)

3, 4, 5-triethyloctane

c)

3, 4, 5-ethyloctane

d)

other

42.

Name.

a)

4-isopropylseptane

b)

4-isoprotallsectane

c)

4-isopropylheptane

d)

other

43.

Name.

a)

6-butyl-3-methylundecane

b)

2-ethyl-5-isobutyldecane

c)

6-isobutyl-3-methylundecane

d)

other

44.

Name.

a)

2-ethyl-5-isopropyl-6-methyloctane

b)

3, 7-dimethyl-4-propylnonane

c)

4-isopropyl-3, 7-dimethylnonane

d)

other

45.

Name.

a)

7-methyl-5-propyloctane

b)

2-methyl-4-propyloctane

c)

5-isobutylnonane

d)

other

46.

Name.

a)

6-methyl-5-propyl-octane

b)

5-propyl-6-methyloctane

c)

5-secbutylnoname

d)

other

47.

Name.

a)

2, 6-dipropyloctane

b)

3, 7-dipropyloctane

c)

4-ethyl-8-methylundaecane

d)

8-methyl-4-ethylundecane

48.

Name.

a)

2, 2, 4-trimethylhexane

b)

4-ethyl-2, 2-dimethylpentane

c)

1-ethyl-3-methylbutane

d)

other

49.

Name.

a)

1-ethylpentane

b)

2-methylpentane

c)

3-bromo-2-methylpentane

d)

other

50.

Name.

a)

4-ethylpentane

b)

2, 2-dimethylpentane

c)

4-dimethylpentane

d)

other

51.

Name.

a)

2-methylpentane

b)

4-ethyl-1-propylpentane

c)

2, 2, 4-trimethylpentane

d)

other

52.

Name.

a)

2-methylhexane

b)

1-ethyl-3-propylbutane

c)

2-methylsectane

d)

other

53.

Name.

a)

2, 4-dimethylpentae

b)

1, 4-diethylpropane

c)

2, 3, 3-trimethylbutane

d)

other

54.

Which molecule is shown?

a)

4-ethyl-3-methyl-2-pentene

b)

4-ethyl-3-methylpentane

c)

3,4-dimethyl-2-hexane

d)

3,4-dimethyl-2-hexene

55.

Which molecule is shown?

a)

3-ethyl-4-methyl-1-pentene

b)

3-methyl-4-ethyl-2-pentene

c)

1-methyl-3-ethenyl-2-pentane

d)

1-methyl-3-ethenylpentane

56.
a)

pentane

b)

heptane

c)

nonane

57.
a)

2-Butene

b)

3-Heptene

c)

2-methyl-2-pentene

58.

Reaction between this compound and two mole of H2 in the presence of Ni catalyst will produce

a)

2-methylbutane

b)

3-methylbutane

c)

3-methylbutene

d)

2-methylbutene

e)

n-butane

59.
a)

A

b)

B

c)

C

d)

D

60.
a)

I

b)

II

c)

III

61.
a)

I

b)

II

c)

III

62.
a)

A

b)

B

c)

C

d)

D

63.
a)

A

b)

B

c)

C

d)

D

64.
a)

A

b)

B

c)

C

d)

D

65.
a)

A

b)

B

c)

C

d)

D

66.
a)

A

b)

B

c)

C

d)

D

67.
a)

CH3CH=CH(Br)+HBr

b)

CH3CHClCHCl

c)

CH3CH(Br)=CH2Br

d)

CH3CHBrCH2Br

68.
a)

cyclohexene-substitution

b)

cyclohexane-addition

c)

cyclohaexane-substitution

d)

cyclohexene-addition

69.
a)

decolourize reddish brown solution

b)

decolourize purple solution

c)

decolourize blue solution

d)

yellow precipitate formed

70.
a)

A

b)

B

c)

C

d)

D

71.
a)

Alkanes

b)

Alkenes

72.
a)

Combustion

b)

Solubility

c)

Baeyer’s Test

d)

Reaction with bromine in dichloromethane

73.
a)

Reddish brown colour of bromine dicolourised

b)

Reddish brown of bromine remain unchanged

74.

A triple bond is comprised of three separate bonds: one .......... bond and two ........... bonds.

a)

single bond and double bond

b)

single bond and triple bond

c)

double bond and triple bond

d)

sigma bond and phi bond

e)

phi bond and sigma bond

75.

Provide a systematic name for the following compound:

a)

2-methyl-2-pentyne

b)

2-methyl-3-heptyne

c)

3-hexyne

d)

2-methyl-3-hexyne

e)

2-pentyne

76.

Draw a bond-line structure for 4,4-dimethyl-2-pentyne.

a)
b)
c)
d)
e)
77.

Citronellal is the main compound responsible for the lemon scent of citronella oil. In addition to its well-known insect repellant properties, it also has some antifungal properties. (+)-Citronellal also has been used1 as a starting material to make compound 1. Provide an IUPAC name for compound 1.

a)

2,5-dimethyl-1-heptyne

b)

3,7-dimethyl-1-octyne

c)

2,4-Dimethyl-2-octyne

d)

3,6-methyl-1-heptyne

e)

1,5-dimethyl-2-nonyne

78.

Predict the major product(s) expected for the following reactions (xs = excess):

a)
b)
c)
79.

When alkynes are treated with hot KMnO4, a triple bond is completely broken forming carboxylic acids and aldehydes depending upon the structure of alkyne.

a)

True

b)

False

80.

 

In an alkyne reaction with HX, addition of excess HX acid yields to a vinyl halide.

a)

True

b)

False

81.

HX addition of alkynes also follows the Markovnikov's Rule which states that hydrogen adds to the carbon with the most number of hydrogen attached to it.

a)

True

b)

False

82.

Ozonolysis of internal alkynes yields to a carboxylic acid.

a)

True

b)

False

83.

Lindlar's catalyst, prepared by deactivating (or poisoning) a conventional palladium catalyst by treating it with lead acetate and quinoline, permits alkynes to be converted to alkenes without further reduction to an alkane, hence forms a trans-alkene.

a)

True

b)

False

84.

Name the organic molecule with this structure:

a)

methane

b)

ethane

c)

propane

85.

What is the organic family for propane?

a)

alkanes

b)

alkenes

c)

alkynes

86.

Name the organic compound with this structure:

a)

ethane

b)

ethene

c)

ethyne

87.

What is the organic family for propene?

a)

alkanes

b)

alkenes

c)

alkynes

88.

Butane

a)

C4H8

b)

C4H6

c)

C4H10

89.
Octene
a)
Alkane
b)
Alkene
c)
Alkyne
90.
a)

Ethane

b)

Ethene

c)

Ethyne

91.
a)

2-ethyl butane

b)

2-methyl hexane

c)

3-methyl pentane

92.
a)

1-propene

b)

2-propyne

93.
C6H12
a)
Alkane
b)
Alkene
c)
Alkyne
94.
C10H22
a)
Alkane
b)
Alkene
c)
Alkyne
95.
C13H26
a)
Alkane
b)
Alkene
c)
Alkyne
96.
C3H8
a)
Alkane
b)
Alkene
c)
Alkyne
97.
CH4
a)
Alkane
b)
Alkene
c)
Alkyne
98.

Explain, in terms of carbon-carbon bonds, why this hydrocarbon is saturated.

a)

There are only single bonds between the carbon atoms.

b)

It is an alkane so it is saturated.

c)

There are only single bonds between the hydrogen and carbon.

99.

Which formula represents an unsaturated hydrocarbon?

a)

A

b)

B

c)

C

d)

D

100.

Which formula represents a saturated hydrocarbon?

a)

A

b)

B

c)

C

d)

D

101.
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
102.
a)

cis-2-butene

b)

trans-2-butene

c)

not listed here

103.

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

104.

How many structural isomers exist for hexane

a)

three

b)

two

c)

five

d)

four

105.

A structural isomer of pentane is?

a)

2,2-dimethylbutane

b)

2-methylbutane

c)

1-methylpropane

d)

1-methylpentane

106.

Given a formula representing a compound:Which formula represents an isomer of this compound?

a)
b)
c)
d)
107.

Which is an isomer of

a)
b)
c)
d)
108.
Propane has no structural isomers
a)
True
b)
False
109.
this is
a)
alkene
b)
alkyne
c)
aromatic hydrocarbon
110.
this is
a)
alkyne
b)
aromatic hydrocarbon
c)
alkene
111.
alkene is:
a)
hydrocarbon with a double bond
b)
hydrocarbon with a triple bond
c)
a hydrocarbon with one or more benzene rings
d)
organic compound with single bonds
112.
alkyne is:
a)
hydrocarbon with a triple bond
b)
a hydrocarbon with one or more benzene rings
c)
hydrocarbon with a double bond
d)
organic compound with single bonds
113.

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

114.

What property can be assigned to a carbon atom that has four different atoms or structural groups attached to it?

a)

isomerity

b)

chirality

c)

chivalry

d)

geometry

115.

Chiral carbons will produce _____________.

a)

structural isomers

b)

optical isomers

c)

polymers

d)

monomers

116.

What operation would transform 2,2 dimethylbutane into hexane?

a)

Adding one carbon and three hydrogen atoms.

b)

Moving a methyl group to the other end of the molecule.

c)

Moving both methyl groups, one to each end of the molecule

d)

Rotating the molecule.

117.

In a stereoisomer, ________ means "on the same side" and ______ means "across from."

a)

cis; trans

b)

cis; L

c)

D; L

d)

trans; cis

118.

How many structural isomers exist for hexane

a)

three

b)

two

c)

five

d)

four

119.
A double bond between two carbon atoms consists of
a)
2 sigma bonds
b)
1 sigma bond and 1 pi bond
c)
2 pi bonds
d)
The bonding scheme varies depending on the molecule
120.

There are two main forms of isomerism, which are?

a)

Structural isomerism and Stereoisomerism

b)

Stereoisomerism and Physical isomerism

c)

Chemical isomerism and Stereoisomerism

d)

Structural isomers and Geometric Isomers

121.

A structural isomer of pentane is?

a)

2,2-dimethyl butane

b)

2-methyl butane

c)

1-methyl propane

d)

1-methyl pentane

122.
Geometric isomers shown below is called
a)
Cis/trans 1,2 dichloroethane
b)
Cis/trans 1,2 dichloroethene
c)
Cis/trans 1,2 chloroethane
d)
Cis/trans 1,2 chloroethene

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