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Structures of Alkanes

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
2.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
3.
The "ane" ending in "alkane" tells someone that they are dealing with _________-bonded carbons.
a)
single
b)
double
c)
triple
d)
quadruple
4.
Give the name of this compound...
C3H8
a)
Propene
b)
Butane
c)
Butene
d)
Propane
5.
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
6.
General formula of Alkane is 
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
7.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
8.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
9.
Alkanes are known as saturated hydrocarbons because they contain only carbon-hydrogen single bonds.
a)
True
b)
False
10.

Which of the following statement(s) is/are true for alkanes. Check all that apply.

a)

Melting and boiling boiling points increases down the homologous series.

b)

Flammability decreases down the homologous series

c)

Alkanes are insoluble in water.

d)

Alkanes are soluble in organic solvents.

e)

The reaction between alkanes and air is highly exothermic.

11.

Alkanes burn in air to produce water and (a)   .

12.

Name the alkane with two carbons.

(a)  

13.

Name the alkane with one carbon atom.

(a)  

14.

Name the type of reaction when alkanes are burnt in air.

(a)  

15.
The boiling points and viscosity of alkane molecules increase as their molecular sizes increase.
a)
True
b)
False
16.
The first member of the alkene series is methene.
a)
True
b)
False
17.
Which formula represents a saturated hydrocarbon?
a)
A
b)
B
c)
C
d)
D
18.
The longer the hydrocarbon, the _______ the boiling point
a)
Lower
b)
Higher
19.

What is the definition of saturated?

a)

No single bonds

b)

Contains a double bond

c)

No single bonds, all double bonds

d)

No double bonds, all single bonds

20.

Which property of the alkane decreases as the molecular masses of the alkanes increase?

a)

boiling point

b)

flammability

c)

melting point

d)

viscosity