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Hydrocarbons

Total questions: 45

Worksheet time: 15mins

Name
Class
Date
1.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
2.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
3.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
4.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
5.
What is the suffix for single bonded hydrocarbons?
a)
-yne
b)
-ene
c)
-ane
d)
-one
6.

What chemical is this? (C5H10)

a)

Pentene

b)

Pentane

c)

Hexane

d)

Heptene

7.
a)

Pentane

b)

3-methylpentane

c)

2-ethylbutane

d)

Butane

8.
Hydrocarbons are compounds that contain
a)
  Carbon and Nitrogen
b)
Carbon and Hydrogen 
c)
  Carbon, and Oxygen
d)
Carbon, Oxygen, and  Hydrogen 
9.
Which formula represents an unsaturated hydrocarbon?
a)
A
b)
B
c)
C
d)
D
10.
The "ane" ending in "alkane" tells someone that they are dealing with _________-bonded carbons.
a)
single
b)
double
c)
triple
d)
quadruple
11.
Name the organic family for this structure:
a)
alkanes
b)
alkenes
c)
alkynes
d)
aromatics
12.

How many chemical bonds can each carbon atom form?

a)

one

b)

two

c)

three

d)

four

e)

six

13.

_____ is the name of hydrocarbons that contain one or more double C=C bonds.

a)

Alkanes

b)

Alkenes

c)

Alkynes

14.

Name the organic compound above

a)

octane

b)

heptane

c)

nonane

d)

hexane

15.

Name the organic compound above.

a)

3-methylhexane

b)

heptane

c)

2,2-dimethylpentane

d)

pentane

e)

2-ethylpentane

16.

Name the organic compound above

a)

2,5-dimethyloctane

b)

decane

c)

4-methylnonane

d)

2-methylnonane

17.

Name the organic compound above

a)

5,5-dimethylhept-3-ene

b)

3,3-dimethylhept-3-ene

c)

3,3-dimethylhept-4-ene

d)

non-3-ene

18.

Name this molecule.

a)

butane

b)

but-2-ene

c)

butene

d)

butyne

e)

but-2-yne

19.

The name for this compound is ....

a)

2-ethylpropane

b)

1,1-dimethylpropane

c)

2-methylbutane

d)

3-methylbutane

20.

This prefix means 7

a)

but

b)

hept

c)

hex

d)

non

21.

Name the following hydrocarbon

a)

hex-2-yne

b)

hexane

c)

hexene

d)

hex-2-ene

e)

hex-4-ene

22.

Name this compound

a)

decane

b)

nonane

c)

octane

d)

heptane

23.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
24.

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

a)
b)
c)
d)
25.
If an alkane has 32 hydrogen atoms, how many carbon atoms does it have?
a)
64
b)
66
c)
15
d)
16
26.

What is the general formula for saturated hydrocarbons?

a)

CnH2n

b)

CnHn+1

c)

CnH2n+1

d)

CnH2n+2

27.
General formula of Alkene is 
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
28.

How many electrons are in a double bond?

a)

1

b)

2

c)

3

d)

4

29.
Which of the following elements must be present in any organic compound?
a)
Carbon
b)
Oxygen
c)
Potassium
d)
Hydrogen
30.

C2H4

a)

ethane

b)

ethene

c)

diene

d)

diane

31.

C4H10

a)

butane

b)

butene

c)

tetrane

d)

carbohydride

32.
As the number of carbons increases in an homologous series the melting point generally...
a)
increase
b)
decrease
c)
stay the same
d)
varies
33.
Which of the following would have the highest melting point?
a)
C3H8
b)
C4H8
c)
C5H12
d)
C22H44
34.
Which of the following undergoes addition reactions
a)
alkanes
b)
alkanes and alkenes
c)
alkanes and alkynes
d)
alkenes
35.
Which of the following generally undergoes substitution reactions
a)
alkanes
b)
alkenes
c)
Alkanes and alkenes 
d)
algebras
36.

propyl is a....

a)

three carbon chain

b)

three carbon side chain

c)

triple bond

37.

How many methyl groups are on the following molecule?

a)

1

b)

2

c)

3

d)

4

38.

How many carbons are in the longest chain?

a)

7

b)

8

c)

9

d)

10

39.
The molecular formula for Heptane is
a)
C4H10
b)
C7H18
c)
C5H12
d)
C7H16
40.

The representation by which lines depict two-electron bonds between atoms.

a)

Molecular Formula

b)

Chemical Formula

c)

Structural Formula

d)

Condensed Fornula

41.

It is written in a way the subscript of the element symbol depicts the number of atoms present in the compound?

a)

Chemical Formula

b)

Condensed Formula

c)

Molecular Formula

d)

Structural Formula

42.

It is the formula where the symbols of atoms are listed in order as they appear in the molecule's structure with bond dashes omitted or limited?

a)

Chemical Formula

b)

Condensed Formula

c)

Molecular Formula

d)

Structural Formula

43.

The name for the compound is ....

a)

2,3-dimethylpropane

b)

3,4-dimethylpropane

c)

2,3-dimethylpentane

d)

3,4-dimethylpentane

44.

The name for this compound is ....

a)

2-ethylpropane

b)

1,1-dimethylpropane

c)

2-methylbutane

d)

3-methylbutane

45.

The systematic name for the structure shown is

a)

1,1-dimethylpropane

b)

2-methylbutane

c)

3-methylbutane

d)

2-methylpentane

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