Download Practice Questions Survey II – 1152 1. The bond angles around the

Practice Questions
Survey II – 1152
1. The bond angles around the carbon atom in methane (CH4) are all:
a. 180o
c. 109.5o
o
b. 120
d. 90o
2. If the bond angles at a carbon atom are 120°, how many groups are distributed around the carbon atom?
a. 1
c. 3
2
d. 4
3. The chemical formula of methanol is CH3OH. How many unshared electron pairs are associated with a
molecule of methanol?
a. 1
c. 4
b. 2
d. 6
4. Which of the following functional groups does not contain a carbonyl group?
a. ester
c. aldehyde
b. alcohol
d. Ketone
5. In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom?
a. aldehydes
c. ketones
carboxylic
d. all of these
acids
6. Which of the following classes of compounds can be categorized as primary, secondary, or tertiary?
a. alcohols
c. carboxylic acids
b. aldehydes
d. ketones
7. The
group is the functional group of which of the following types of compounds?
a. carboxylic acids
c. carboxylic esters
b. aldehydes
d. ketones
8. Alkanes belong to which class of hydrocarbons?
a. alkali
c. saturated
b. aromatic
d. unsaturated
9. Which of the following is the correct molecular formula for hexane?
a. C6H6
c. C6H14
b. C6H10
d. C6H16
10. Which of the following is the most stable conformation of cyclopentane?
a. boat
c. envelope
b. chair
d. twist
11. Which of the following correctly describes the relationship between butane and 2-methylpropane?
a. They have the same molecular formula.
b. They have the same chemical properties.
c. They have the same physical properties.
d. All of the above are true.
12. What is the IUPAC name of the following compound?
a. diethylcyclopentane
b. butylcyclopentane
c. 1,1-diethylcyclopentane
d. none of these
13. Which of the following line-angle structures is 4-isopropyloctane?
a.
c.
b.
d.
14. Which of the following statements about the conformation shown below are true?
a.
b.
c.
d.
The ethyl and methyl groups are both axial.
All three alkyl substituents are equatorial.
The ethyl group is axial and the methyl group is equatorial.
The ethyl and methyl groups are both equatorial and the propyl group is axial.
15. What is the name of the following compound?
a. cis-1,3-dimethylcyclopentane
b. cis-1,4-dimethylcyclopentane
c. trans-1,3-dimethylcyclopentane
d. trans-1,4-dimethylcyclopentane
16. Which of the following has the lowest melting point?
a. decane
c. octane
b. hexane
d. nonane
17. Which of the following is true of pentane and 2-methylbutane?
a. They have the same molecular formula.
b. They have the same boiling point.
c. Both a and b are true.
d. Neither a nor b is true.
18. Which of the following is the characteristic feature of all alkenes?
a. the presence of one or more carbon-carbon double bonds
b. the presence of one or more carbon-carbon triple bonds
c. the presence of at least one carbon-carbon double bond, and at least one carbon-carbon
triple bond
d. the presence of a ring system
19. Given an alkane, an alkene, and an alkyne, each of which contains two carbon atoms, which compound will
contain the fewest hydrogen atoms?
a. the alkane
b. the alkene
c. the alkyne
d. None, they all contain the same number of hydrogen atoms.
20. Which of the following is the most characteristic reaction of alkenes?
a. addition
c. reduction
b. oxidation
d. substitution
21. Which of the following reactions involves the addition of two equivalent/same groups to the two ends of a
double bond?
a. hydration
c. both a and b
b. hydrogenation
d. neither a nor b
22. Which of the following curved arrows correctly describes the first step of the reaction of propene with a
hydrogen halide?
a.
c.
b.
d. None of these are correct.
23. Which of the following curved arrows correctly describes the second step in the reaction of propene with
hydrogen bromide?
a.
b.
c.
d.
24. Markovnikov’s rule is useful in predicting the outcome for which of the following addition reactions of
unsymmetrical alkenes?
a. hydration
c. both a and b
b. bromination
d. neither a nor b
25. Which of the following is true of the reactivity of benzene?
a. It reacts readily with bromine to form 1,2-dibromobenzene.
b. It can be readily hydrogenated with H2/Pd.
c. It reacts readily with HBr to form bromobenzene.
d. None of the above is true.
26. What is the most specific name for the C6H5 group?
a. aryl
c. phenol
b. arenyl
d. phenyl
27. What is an acceptable name of the following compound?
a. o-dimethylbenzene
b. m-dimethyllbenzene
c. p-diethylbenzene
d. m-diethylbenzene
28. Which of the following is a polynuclear aromatic hydrocarbon with three rings in a linearly fused
arrangement?
a. anthracene
c. naphthalene
b. benzene
d. phenanthrene
29. Which of the following structures represents 2,4,6-tribromophenol?
a.
c.
b.
d.
30. Consider the following step is the autoxidation of a fatty acid.
31. Which step of the mechanism does this represent?
a. chain initiation
b. chain propagation
c. chain termination
d. None of these, this is an oxidation.
32. Which of the following elements is present in thiols but not in alcohols?
a. C
c. P
b. O
d. S
33. Which of the following is true of the alcohol functional groups in 2,3-butanediol?
a. One is secondary and one is tertiary.
b. Both are secondary.
c. Both are tertiary.
d. None of the above is true.
34. Which of the following compounds is most soluble in water?
a. 1-pentene
c. 1-propanol
b. propane
d. trans-2-butene
35. Which of the following alkenes will be the major product when 2-methylcyclohexanol is heated with
concentrated sulfuric acid?
a.
c.
b.
d.
Bonus: (20 pts)
1.
1.
a.
b.
c.
d.
1. What is the IUPAC name of the following compound? (3 pts)
What type of alcohol is formed by the hydration of 1-pentene? (3)
primary
secondary
tertiary
None of these, the product is not an alcohol.
2. Circle all of the equatorial hydrogens in cyclohexane. (3 pts)
3. The conversion of nitrobenzene (C6H5-NO2) to aniline (C6H5-NH2) is an example of which of the
following? (3 pts)
a. Reduction
b. Substitution
4.
Draw and name ALL six functional groups. (8pts)