Practice Test - Saturated Hydrocarbons

1.
How many bonds does carbon normally form?
A.
1
B.
2
C.
3
D.
4


2.
Which molecular formula is correct for a saturated compound?
A.
C3H6Cl2
B.
C3H6O
C.
C3H7
D.
C4H6


3.
Which functional groups are present in this compound?
A.
carboxylic acid, ketone, aldehyde
B.
ether, amine, alcohol
C.
alcohol ketone, alcohol
D.
alcohol, amide, aldehyde


4.
What are the bond angles in a saturated alkane?
A.
180º
B.
150º
C.
120º
D.
109.5º


5.
What is the IUPAC name for this compound?
A.
3-ethyl-6-methyl-3-propyloctane
B.
4,4-ethyl-7-methylnonane
C.
6,6-diethyl-3-methylnonane
D.
6-ethyl-3-methyl-6-propyloctane


6.
What is the IUPAC name for this compound?
A.
5-ethyl-2,3,6-trimethyloctane
B.
4-ethyl-3,6,7-trimethyloctane
C.
2,3-diethyl-5,6-dimethylheptane
D.
5,6-diethyl-2,3-dimethylheptane


7.
What is the maximum number of CH3 groups that an alkane with the formula C6H14 can have?
A.
2
B.
3
C.
4
D.
5


8.
How many hydrogen atoms are there in a molecule of 4,4-diethyloctane?
A.
12
B.
24
C.
26
D.
27


9.
A student incorrectly named a molecule 2,3-dimethyl-4-isopropylpentane. What is the IUPAC name for this compound?
A.
4-isopropyl-2,3-dimethylpentane
B.
2-isopropyl-3,4-dimethylpentane
C.
1,2,3,4-tetramethylpentane
D.
2,3,4,5-tetramethylhexane


10.
A student incorrectly named a molecule 2,3-dimethyl-2-ethylpentane. What is the IUPAC name for this compound?
A.
3,3,4-trimethylhexane
B.
2,3,4-trimethylhexane
C.
2,3,3-trimethylhexane
D.
2,3,4,5-tetramethylbutane


11.
How many tertiary (3º) carbon atoms are there in this molecule?
(CH3)2CHCH2CHCH3CH2C(CH3)3
A.
1
B.
2
C.
3
D.
4


12.
How many secondary (2º) carbon atoms are there in this molecule?
(CH3)2CHCH2C(CH3)2CH2C(CH3)3
A.
1
B.
2
C.
3
D.
4


13.
What is the IUPAC name for this compound?
A.
2,3,5,5-tetramethylheptane
B.
2-ethyl-2,4,5-trimethylhexane
C.
5-ethyl-2, 3, 5-trimethylhexane
D.
3,3,5,6-tetramethylheptane


14.
What is the IUPAC name for this compound?
A.
2-ethyl-2-methyl-4-propylhexane
B.
2-ethyl-2-methyl-4-isopropylhexane
C.
2-ethyl-2-methyl-4-isopropylheptane
D.
5-isopropyl-3,3-dimethyloctane


15.
Consider these compounds:
(I)
octane
(II)
Pentane
Which statement about these compounds is true?
A.
I has a higher boiling point than II.
B.
II has a higher boiling point than I.
C.
I and II have almost the same boiling points.
D.
It is impossible to compare the boiling points of these compounds without additional information.


16.
Consider these compounds:
(I)
Hexane
(II)
3-methylpentane
Which statement about these compounds is true?
A.
I has a higher boiling point than II.
B.
II has a higher boiling point than I.
C.
I and II have almost the same boiling point.
D.
It is impossible to compare the boiling points of these compounds without additional information.


17.
Which combination will not lead to a chemical reaction?
    I

    II

    III

    IV
A.
IV, III, II, and I
B.
III, II, and I only
C.
II and I only
D.
I only


18.
Which combination will not lead to a chemical reaction?
    I

    II

    III

    IV
A.
I, II, III, and IV
B.
I, II, and III only
C.
I, and II only
D.
I only


19.
Which reagent will react with methane?
A.
sodium hydroxide in the presence of heat or light
B.
sulfuric acid in the presence of heat or light
C.
chlorine in the presence of heat or UV light
D.
hydrogen chloride in the presence of heat or UV light


20.
What are the products of the complete combustion of cycloheptane?
I water
II carbon monoxide
III carbon dioxide
IV oxygen
A.
I and II only
B.
I and III only
C.
III and IV only
D.
II and IV only


21.
How many different monochlorinated products can result from the chlorination of cyclopentane?
A.
0
B.
1
C.
3
D.
4


22.
A student incorrectly named an organic compound 4-methylhexane. Which statement describes the error in this name?
A.
The name cannot be 4-methylhexane, because hexane can never have a substituent on the fourth carbon.
B.
The name cannot be 3-methylhexane, because the chain is not numbered correctly.
C.
The compound should be called 2-propylbutane to account for the three-carbon substituent group.
D.
The compound should be called 2-ethylpentane to account for the seven carbons.


23.
A student incorrectly named an organic compound 3-propylheptane.The correct name should be:
A.
4-ethyloctane because the longest chain was not selected in the name.
B.
3-ethyloctane because the longest chain was not selected in the name.
C.
5-ethyloctane because the longest chain was not selected in the name.
D.
5-propylheptane because the numbering system was incorrect.


24.
How many different dichlorinated products can form from the chlorination of butane?
A.
10
B.
8
C.
6
D.
4


25.
What is the sum of all coefficients in the balanced chemical equation for the complete combustion of butane?
A.
13
B.
15
C.
23
D.
33


STOP This is the end of the test. When you have completed all the questions and reviewed your answers, press the button below to grade the test.