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example test for 10 grades

Total questions: 26

Worksheet time: 22mins

Name
Class
Date
1.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
2.
How many hydrogen atoms are in butane
a)
4
b)
6
c)
8
d)
10
3.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
4.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
5.
Give the name of this compound...
C3H8
a)
Propene
b)
Butane
c)
Butene
d)
Propane
6.
What is the general formula for saturated hydrocarbons?
a)
CnH2n
b)
CnHn+1
c)
CnH2n+1
d)
CnH2n+2
7.

In organic chemistry, commas separate....

a)

numbers

b)

names from numbers

8.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
9.

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

10.
Why do alkane not dissolve in water?
a)
they are less dense than water
b)
they have low melting points
c)
they are non-polar compounds 
d)
they are chemically less reactive
11.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
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.
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
14.
Methyl has the molecular formula
a)
CH4
b)
CH3
c)
CH
d)
CH2
15.
The longer the hydrocarbon, the _______ the boiling point
a)
Lower
b)
Higher
16.
What is the exam 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
17.
Which formula represents a saturated hydrocarbon?
a)
A
b)
B
c)
C
d)
D
18.

The boiling points of alkane molecules increase as their molecular sizes increase.

a)

True

b)

False

19.

Which of the following has the highest boiling point?

a)

heptane

b)

pentane

c)

nonane

20.
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
21.
Why do alkane not dissolve in water?
a)
they are less dense than water
b)
they have low melting points
c)
they are non-polar compounds 
d)
they are chemically less reactive
22.

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

23.

3,4-dimetyhlhexane has the following structure

a)
b)
c)
d)
24.

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

a)

propane

b)

butane

c)

pentane

d)

hexane

25.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
26.

Which of the following shows the structure of ethane?

a)
b)
c)
d)

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