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Nomenclature of Hydrocarbons

Total questions: 52

Worksheet time: 3hrs 53mins

Name
Class
Date
1.

What is the structure of 2-methyl pent-2-ene ?

a)

a

b)

b

c)

c

d)

d

2.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
3.

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

4.

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

5.

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

6.

Name this molecule

a)

2-methyl-pent-1-yne-3-ene

b)

1-methyl-pent-1-yne-3-ene

c)

2-methyl-pent-1-ene-3-yne

d)

1-methyl-pent-1-ene-3-yne

7.
Name this molecule:
a)
trifluoro-1-methylmethane
b)
1,1,1-trifluoromethane
c)
trifluorethane
d)
1,1,1-trifluoroethane
8.
How many carbons are in the backbone (longest chain) of this organic compound: 2,3,3-triethyl-4-nonene
a)
2
b)
6
c)
7
d)
9
9.
How many carbons are in the longest chain of the following molecule:
a)
11
b)
10
c)
9
d)
8
10.
Name the compound.
a)
nonene
b)
2,2-dimethyl-3-heptene
c)
1,1,5-trimethyl-2-hexene
d)
2,6-dimethyl-3-heptene
11.

Which reagent is needed to change CH3CH=CH2 to CH3CHClCH3

a)

Cl2 (aq)

b)

SOCl2

c)

PCl3

d)

HCl

12.
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
13.

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

14.

Give the correct IUPAC name for this compound

a)

2methylhexane

b)

2-methyl-hexane

c)

2-methylhexane

d)

2-methyl hexane

15.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
16.

Give the name of substituent A

a)

sec-butyl

b)

tert-butyl

c)

isopropyl

d)

sec-propyl

17.

Name the IUPAC nomenclature

a)

4–tert–butyl–2–methylheptane

b)

2–methyl–4–sec–butylheptane

c)

2–methyl–4–tert–butylheptane

d)

4–sec-butyl–4–methylheptane

18.

Which of the correct following step to numbering parent chain?

a)
b)
c)
d)
19.

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

20.

Complete the IUPAC nomenclature for this structure

a)

4-sec-butyl

b)

4-isopropyl

c)

4-tert-butyl

d)

4-neo-pentyl

21.

How many the substituents in this structure

a)

3 substituent

b)

4 substituent

c)

5 substituent

d)

6 substituent

22.

What is the substituents not exist in this structure

a)

methyl

b)

isopropyl

c)

cyclopropyl

d)

ethyl

23.

______ is the simplest alkane.

a)

Ethane

b)

Methane

c)

Propane

d)

Decane

24.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
25.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
26.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
27.
The name of the structure shown is :
a)
pentane
b)
hexane
c)
heptane
d)
octane
28.

Name the compound....

a)

2,3-dimethylbutane

b)

3,3,-dimethylbutane

c)

2,3-methylbutane

d)

1,2-methylbutane

29.

Hydrocarbons with only single covalent bonds are known as

a)

alkenes

b)

alkanes

c)

alkynes

d)

cycloalkenes

30.

A saturated hydrocarbon is also an

a)

alkanes

b)

alkenes

c)

alkynes

31.

Butane is an alkane with _____ carbon atoms

a)

2

b)

3

c)

4

d)

5

32.

An alkene is a hydrocarbon with

a)

all single bonds between carbon atoms

b)

one triple bond between 2 carbon atoms

c)

at least one double bond between 2 carbon atoms

33.

An alkane with only 2 carbon atoms is

a)

methane

b)

ethane

c)

propane

d)

butane

34.

Choose the correct name for this carbon chain

a)

2,3,5-trimethyl-2-hexene

b)

2,2,5- trimethyl hexane

c)

1,1,5 trimethyl-4 hexane

35.

Name the Carbon Chain

a)

ethylhexane

b)

ethylheptane

c)

propylpentane

d)

propylhexane

36.

Name this compoud

a)

butane

b)

propane

c)

octane

d)

pentane

37.

Aliphatic hydrocarbons are nonpolar compounds

a)

true

b)

false

38.

Name the compound

a)

2,2,4,4-Tetramethylpentane

b)

2,2,3,3-Tetramethylpentane

c)

1,2,3,4-Dimethylpentane

d)

2,2,4,4-Dimethylpentane

39.

Which of the following compounds is the correct molecular formula of pentane ?

a)

C5H12

b)

CH4

c)

C6H14

d)

CH3CH2CH2CH2CH2CH3

40.

Methane

a)

CH4

b)

CH6

c)

CH12

d)

C2H4

41.

Butene

a)

C4H8

b)

C2H6

c)

C3H8

d)

C2H4

42.

C4H6

a)

Ethyne

b)

Propyne

c)

Butyne

d)

Pentyne

43.

All living systems are made from carbon-based molecules.

a)

True

b)

False

44.

Besides carbon dioxide and water vapor, another greenhouse effect gas is:

a)

propane

b)

butene

c)

ethane

d)

methane

45.

The names of all alkenes end with the suffix:

a)

-ane

b)

-hex

c)

-ene

46.

Nonane contains the following number of carbons:

a)

3

b)

4

c)

9

d)

7

47.

Propane contains the following number of carbons:

a)

3

b)

4

c)

9

d)

7

48.

The correct name for this hydrocarbon is:

a)

1-methene

b)

2-butane

c)

1-propene

49.

In hydrocarbon nomenclature, a number next to a number should be separated with a :

a)

blank space

b)

comma

c)

hyphen

50.

In hydrocarbon nomenclature, a number next to a word should be separated with a :

a)

blank space

b)

comma

c)

hyphen

51.
What is the general formula of the alkynes?
a)
CnH2n+1
b)
CnH2n+2
c)
CnH2n-1
d)
CnH2n-2
52.
What is the general formula for saturated hydrocarbons?
a)
CnH2n
b)
CnHn+1
c)
CnH2n+1
d)
CnH2n+2

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