Review for Exam 3

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Review for Exam 3
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• Spring 2007

2
1. In organic compounds which of the following
elements normally forms two covalent bonds?
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• A carbon
• B hydrogen
• C nitrogen
• D oxygen

3
2. Which of the following is an example of a
secondary amine?
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• A CH3NH2
• B CH3CH2NH2
• C CH3CH2CH2NH2
• D CH3CH2NHCH3

4
3. Eicosane is a 20-carbon alkane. How many
hydrogen atoms are in a molecule of eicosane?
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• A 38
• B 40
• C 42
• D 44

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4. Of the compounds listed here, which is not an
isomer of the other two?
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• A 2,3-dimethylpentane
• B 3-methylhexane
• C 3-ethylpentane
• D none, they are all isomers of one another

6
5. What is the IUPAC name of CH3CHCH2CH3
CH3C-CH3 CH3CHCH3 ?
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• A 2-isopropyl-2,3-dimethylpentane
• B 2-sec-butyl-2-isopropylpropane
• C 2,3,3,4-tetramethylhexane
• D none of these

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6. Cis-trans isomers exist for which of the
following molecules, all of which have the
formula C6H12?
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• A 4-methyl-2-pentene
• B 2-methyl-1-pentene
• C 2-methyl-2-pentene
• D all of them

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7. What type of alcohol is formed by the
hydration of 3-methyl-2-pentene?
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• A primary
• B secondary
• C tertiary
• D none of these, the product is not an alcohol

9
8. Which of the following is the IUPAC name for
sec-butyl alcohol?
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• A 1-butanol
• B 2-butanol
• C 2-methyl-1-propanol
• D 2-methyl-2-propanol

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9. Which of the following alcohols is most
soluble in water?
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• A 1-pentanol
• B 1,5-pentanediol
• C 1,3,5-pentanetriol
• D none, they are all equally soluble

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10. Which of the following is obtainable by the
oxidation ofsec-butyl alcohol?
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• A 2-methylpropanoic acid
• B 2-oxobutanoic acid
• C both A and B
• D neither A nor B

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11. Which of the following correctly gives the
order of boiling points for the pentanol, diethyl
ether and hexane?
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• A hexanegtdiethyl ethergtpentanol
• B hexanegtpentanolgtdiethyl ether
• C pentanolgtdiethyl ethergthexane
• D pentanolgthexanegtdiethyl ether

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12. What is the IUPAC name for sec-butyl
mercaptan?
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• A 2-butanethiol
• B 2-methyl-2-propanethiol
• C 2-methyl-2-propanethiol
• D none of these

14
13. How many moles of oxygen are consumed during
the complete combustion of one mole of ethanol?
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• A 1
• B 2
• C 3
• D 4

15
14. Given the compounds 2-methyl-1-pentene and
3-methyl-1-pentene which of the following is
true?
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• A Only 2-methyl-1-pentene is chiral
• B Only 3-methyl-1-pentene is chiral
• C Both are chiral
• D Neither is chiral

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15. What is the common name of(CH3)2NCH2CH3?
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• A ethyldimethylamine
• B dimethylethylamine
• C 1,1-dimethylethylamine
• D none of these

17
16. Which of the following has the lowest boiling
point?
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• A butane
• B 1-propanone
• C 1-propanol
• D 2-propaname

18
17. What is the IUPAC name of propyl isobutyl
ketone?
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• A 4-octanone
• B 2-methyl-4-heptanone
• C 3-methyl-4-heptanone
• D 2,2-dimethyl-3-hexanone

19
18. In which of the following do the compounds
have the closest boiling points?
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• A 2-butanone and butanal
• B 2-butanone and diethyl ether
• C diethyl ether and butanal
• D 2-butanone and 1-butanol

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19. Which of the following is least soluble in
water?
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• A 2-butanone
• B 2-heptanone
• C 2-hexanone
• D 2-pentanone

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20. Which of the following is obtained by
oxidizing 2-hexanone?
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• A hexanal
• B hexanol
• C hexanoic acid
• D none of these

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21. Which of the following is obtained by the
reduction of pentanal?
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• A pentene
• B 1-pentanol
• C 2-pentanol
• D 3-pentanol

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22. The reaction of which combination of
reactants results in the formation of a
hemiacetal?
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• A ketone and alcohol
• B ketone and aldehyde
• C ketone and carboxylic acid
• D carboxylic acid and alcohol

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23. What is the name of the compound produced by
the reaction of benzoic acid with sodium
hydroxide?
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• A benzoic sodate
• B benzoic sodide
• C sodium benzide
• D sodium benzoate

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24. Which of the following is produced by the
acid-catalyzed hydrolysis of methyl propanoate?
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• A methanol and propanoic acid
• B methanol and a propanoate salt
• C propanol and formic acid
• D propanol and a formate salt

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25. What is produced when acetamide is
hydrolyzed in a solution which contains sodium
hydroxide?
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• A sodium acetate and acetic acid
• B sodium acetate and ammonia
• C acetic acid and ammonium chloride
• D acetic acid and ammonia