Sample Exam: Organic and Biochemistry (Q #1 - #17 are for Exam #4 and Q #18 - #21 are for
Final Exam)
1. The name of the alkane below is
a. pentane
b. 2-methylpentane
c. 2-methylbutane
d. 1,2 dimethylpropane
e. 3-methylbutane
CH3 CH2 CH CH3

CH3
2. What is the correct name for the alkane shown below?
a. 2,2,4-trimethylheptane
b. 2,2-dimethyl-4-propylpentane
c. decane
d. 2-propyl-4,4-dimethylpentane
e. none of the above
CH3

CH3  C  CH2  CH  CH3


CH3
CH2

CH2  CH3
3. How many different isomers are there for the dichlorocyclopropane?
a. 1
b. 2
c. 3
d. 4
e. more than 4
4. What is the name of the compound shown below?
CH3
CH3
a. 1,3-dimethylbutane
b. 2,4-dimethylcyclobutane
c. 1,3-dimethylcyclobutane
d. cyclohexane
e. 1,2,3-trimethylcyclopropane
5. The compound named 2,2,5-trimethyloctane will have a condensed formula of
CH3
a. CH3 CH2 CH2 CH CH2 CH2 C CH3
CH3
CH3
CH3
CH3
b. CH3 CH2 CH2 CH2 CH2 CH2 CH2 CH3
CH3
c. CH3 CH CH2 CH2 CH CH2 CH2 CH3
CH3
CH3
d. CH3 CH2 CH2 CH2 CH2 CH2 CH2 CH3
6. Which of the following pairs of molecules are NOT structural isomers?
a. butane and 2-methylpropane
b. pentane and methylcyclobutane
c. 2,3-dimethylbutane and hexane
d. 1,3-dichloropropane and 1,2-dichloropropane
e. 1,1-dimethylcyclopropane and methylcyclobutane
7. What is the name of the compound shown below?
a. 2-butene
b. 1-pentene
c. 2-methyl-1-butene
d. 3-methyl-1-butene
e. 2-methyl butane
CH3

CH2 = CH CH CH3
8. Which of the following molecules would have a cis and trans isomer?
a. CH3CH=CHCH3
b. (CH3)2C=CH2
d. both a and b
c. CH3C≡CCH3
e. both a and c
9. What is the name of the compound shown below?
Cl
Cl
a. 1,3-dichlorobenzene
b. 1,5-dichlorobenzene
c. 1,3-dichlorocyclohexane
d. 2,4-dichlorobenzene
e. 1.3-dichlorohexane
10. What is the name of this compound?
CH3CH2
CH
CH2CH3
OH
a. 3-pentanol
b. 3-pentanone
c. 3-pentanal
d. pentanol
e. pentanoic acid
11. Which compound can be oxidized?
O
a.
OH
CH3
O
b.
CH3 CH2 CH
c.
CH3 CH2 C OH
OH
d.
CH3 CH2 CH CH3
e. both a and d
12. What is the name of the compound below?
O
CH3 CH2 CH
a. propanal
b. propanoic acid
c. 1-propanol
d. propanone
e. propene
13. For small (C4 or less) organic compounds containing Oxygen, the functional groups that are
very soluble in water are
a. aldehydes and ketones
b. alcohols and carboxylic acids
c. esters and ethers
d. alcohols and aldehydes
e. ethers and ketones
14. The reaction below will produce
H+
+ H2O
a. cylclopentane
b. cyclopentanal
c. cyclopentanone
d. cyclopentanol
e. no reaction
15. Which molecule has a chiral carbon?
Cl
CH3 C
a.
H
Cl
Cl
CH3
b.
CH3 C
Cl
O
H
c.
CH3 C
CH3 C
H
d.
CH2CH3
H
e. none of these
16. What is the product of the reaction of CH3NH2 + HBr → ?
a. CH3NH2+ + Br−
b. CH3NH3+ + Br−
c. CH3NH− + H2Br+
d. CH3NH2+ + HBr−
e. N.R.
17. The reaction between CH3 CH2 CH2 CH2 OH and CH3 – C – OH will produce

O
a. an amide
b. an ether
c. an ester
d. an aldehyde
e. no reaction
18. The molecule below would be an example of a
O

a. a ketopentose
b. an aldopentose
c. an alcohol
d. an aldehyde
e. a ketone
C–H

H – C – OH

H – C – OH

H – C – OH

CH2OH
19. Amylose, a starch molecule, is an example of a
a. monosaccharide
b. disaccharide
c. polysaccharide
d. fatty acid
e. amino acid
20. An unsaturated fatty acid is different from a saturated fatty acid because it contains
a. at least one carboxyl group, - COOH
b. at least one C double bond, - C = C c. a glycerol molecule
d. three fat molecules compared to one fat molecule
e. additional -OH groups on the long chain.
21. All 20 amino acids contain
a. an ester and an amide group
b. a ketone and an amine group
c. an alcohol and a carboxylic acid group
d. an amine and a carboxylic acid group
e. all amino acids are distinctly different in their structure
Answers:
1C, 2A, 3B, 4C, 5A, 6B, 7D, 8A, 9A, 10A, 11E, 12A, 13B, 14D, 15D, 16B, 17C, 18B, 19C, 20B,
21D