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MR. SURRETTE
VAN NUYS HIGH SCHOOL
CHAPTER 9: ORGANIC CHEMISTRY
WORKSHEET ANSWERS
PART I. MULTIPLE CHOICE
1. Provide the condensed structural formula for pentane.
(A) CH2CH3CH3CH3CH2 (B) CH3CH2CH2CH3 (C) CH3CH2CH2CH2CH3
(D) CH3CH2CH3 (E) CH2CH3CH3CH2
2. Organic chemistry is the study of the __________ atom.
(A) nitrogen (B) chlorine (C) carbon (D) hydrogen
(e) oxygen
3. The arrangement of atoms in molecules and polyatomic ions is depicted by:
(A) abbreviated configurations (B) configurations (C) condensed structural diagrams
(D) orbital diagrams (E) structural diagrams
4. Two atoms share four electrons. What type of bond exists between the two atoms?
(A) single (B) double (C) triple (D) Van der waals (E) hydrogen
5. __________ show the actual number and kinds of atoms in a molecule.
(A) orbital diagrams (B) elemental formulas (C) isomers (D) molecular formulas
(E) empirical formulas
6. Several molecules with the same composition but different structures are called:
(A) elements (B) isotopes (C) isomers (D) compounds (E) organic
7. __________ leave out some bonds and/or atoms within compounds.
(A) Condensed structural formulas (B) Molecular formulas (C) Structural formulas
(D) Organic formulas (E) Electron configurations
8. __________ are composed of only carbon and hydrogen atoms.
(A) Alkyl halides (B) Hydrocarbons (C) Halogens (D) Alcohols
(E) Amines
9. Hydrocarbons that do not contain double bonds, triple bonds, or ring structures are called:
(A) alkenes (B) alkynes (C) alcohols (D) alkanes (E) alkyl halides
10. Hydrocarbons that contain double bonds are called:
(A) alkynes (B) alcohols (C) alkanes (D) alkyl halides
(E) alkenes
11. An alkane contains three carbon atoms. Provide its condensed structural formula.
(A) CH3CH2CH3 (B) CH2CH3CH2 (C) C4H7 (D) CH3CH3CH2 (E) CH2CH2CH2
12. An alkyne contains two carbon atoms. Provide its condensed structural formula.
(A) CH2CH (B) C2H4 (C) C2H2 (D) C2H (E) CH
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MR. SURRETTE
13. The alcohol functional group is:
(A) OH (B) COOH (C) COH
VAN NUYS HIGH SCHOOL
(D) N
14. Nitrogen added to alkanes forms:
(A) alkenes (B) alkanes (C) alcohols
15. The carboxyl functional group is:
(A) OH (B) COOH (C) COH (D) N
(E) H
(D) aldehydes
(E) amines
(E) H
PART II. SHORT ANSWERS
16. An alkane contains three carbon atoms. Draw its structural formula.
16A.
PROPANE
17. An alcohol functional group connects to the C2H5 alkane. Draw the structural formula for this
compound.
17A.
ALCOHOL DERIVATIVE
18. An alkane contains two carbon atoms. One atom of chlorine is added to the alkane. Draw a
possible structural diagram.
18A.
CHLORINE ALKYL HALIDE
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MR. SURRETTE
VAN NUYS HIGH SCHOOL
19. A carboxylic acid functional group connects to the C2H5 alkane. Draw the structural formula for
this compound.
19A.
CARBOXYLIC ACID
20. An alkyne contains two carbon atoms. Draw the structural diagram.
20A.
ACETYLENE
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MR. SURRETTE
VAN NUYS HIGH SCHOOL
CHAPTER 9: ORGANIC CHEMISTRY
QUIZ SOLUTIONS
PART I. MULTIPLE CHOICE
1. Two atoms share four electrons. What type of bond exists between the two atoms?
1A. Double
2. __________ show the actual number and kinds of atoms in a molecule.
2A. Molecular formulas
3. Hydrocarbons that contain triple bonds are called:
3A. alkynes
4. Several molecules with the same composition but different structures are called:
4A. Isomers
5. An alkane contains three carbon atoms. Provide its condensed structural formula.
5A. CH3CH2CH3
6. An alkyne contains two carbon atoms. Provide its condensed structural formula.
6A. C2H2
7. Nitrogen added to alkanes forms:
7A. amines
8. Organic chemistry is the study of the __________ atom.
8A. carbon
9. The strongest chemical bonds belong to:
9A. carbon
10. Specific arrangement of atoms in an organic compound that undergo characteristic chemical
reactions are called:
10A. functional groups
10. Organic chemistry is the study of the __________ atom.
10A. carbon
11. The arrangement of atoms in molecules and polyatomic ions is depicted by:
11A. structural diagrams
12. When halogens replace the hydrogen atoms in hydrocarbons they form:
12A. alkyl halides
13. __________ are composed of only carbon and hydrogen atoms.
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MR. SURRETTE
VAN NUYS HIGH SCHOOL
13A. Hydrocarbons
14. Hydrocarbons that contain double bonds are called:
14A. alkenes
15. Nitrogen added to alkanes form compounds that are called:
15A. alkanes
PART II. SHORT ANSWERS
16. An aldehyde functional group connects to the C3H7 alkane. Draw the structural formula for this
compound.
16A.
ALDEHYDE
17. An alkyne contains three carbon atoms. Draw a possible structural diagram.
17A.
ALKYNE
18. An alkane contains four carbon atoms. Draw its structural formula.
18A.
BUTANE
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19. An alcohol functional group connects to the C3H7 alkane. Draw the structural formula for this
compound.
19A.
ALCOHOL DERIVATIVE
20. An alkane contains three carbon atoms. One atom of chlorine is added to the alkane. Draw a
possible structural diagram.
20A.
CHLORINE ALKYL HALIDE
CHEMISTRY
SCIENCE DEPARTMENT