Test Bank for Chemistry 8th Edition By Jill Kirsten Robinson, John McMurry, Robert Fay

Test Bank for Chemistry 8th
Edition By Jill Kirsten
Robinson, John McMurry,
Robert Fay
All Chapters 1-23, 100%
Original Verified, A+
Grade)
All Chapters Arranged
Reverse: 23-1

,Chemistry, 8e (Robinson/McMurry/Fay)
Chapter 23 Organic and Biological Chemistry

23.1 Multiple Choice Questions

1) The most important characteristic of carbon atoms for forming organic molecules is
A) ability to bond together to form long chains.
B) ability to form multiple covalent bonds.
C) use of hybrid orbitals.
D) A and B
Answer: D
Diff: 2 Var: 1
Topic: Section 23.1 Organic Molecules and Their Structures: Constitutional Isomers
Learning Obj: LO 23.1 Represent the chemical structure of alkanes as condensed structures or line drawings.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.

2) Which of the following statements about properties of organic compounds is not correct?
A) Most organic compounds are not soluble in water.
B) Most organic compounds do not conduct electricity.
C) Organic compounds have higher melting and boiling points than ionic compounds.
D) Organic compounds have weak intermolecular forces.
Answer: C
Diff: 2 Var: 1
Topic: Section 23.1 Organic Molecules and Their Structures: Constitutional Isomers
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.

3) Another term for alkanes is
A) alkenes.
B) alkynes.
C) saturated hydrocarbons.
D) unsaturated hydrocarbons.
Answer: C
Diff: 1 Var: 1
Topic: Section 23.1 Organic Molecules and Their Structures: Constitutional Isomers
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.

4) Compounds that have the same formula but different molecular structures are called
A) isoelectronic.
B) isomers.
C) isotones.
D) isotopes.
Answer: B
Diff: 2 Var: 1
Topic: Section 23.1 Organic Molecules and Their Structures: Constitutional Isomers
Learning Obj: LO 23.2 Identify and draw constitutional isomers of alkanes.
Global Obj: G1 Demonstrate an understanding of the principles of scientific inquiry.




1
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,5) Which of the following statements about isomers is false?
A) All alkanes have branched chain isomers.
B) As the number of carbon atoms increase in a compound, so do the number of possible isomers.
C) Isomers have different physical properties.
D) Isomers have the same formula but different molecular structures.
Answer: A
Diff: 2 Var: 1
Topic: Section 23.1 Organic Molecules and Their Structures: Constitutional Isomers
Learning Obj: LO 23.2 Identify and draw constitutional isomers of alkanes.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.

6) How many isomers are there for C5H12?
A) 3
B) 4
C) 5
D) 6
Answer: A
Diff: 2 Var: 1
Topic: Section 23.1 Organic Molecules and Their Structures: Constitutional Isomers
Learning Obj: LO 23.2 Identify and draw constitutional isomers of alkanes.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.

7) Which is the condensed structure of a straight-chain hydrocarbon?




A) I
B) II
C) III
D) IV
Answer: A
Diff: 3 Var: 1
Topic: Section 23.1 Organic Molecules and Their Structures: Constitutional Isomers
Learning Obj: LO 23.1 Represent the chemical structure of alkanes as condensed structures or line drawings.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.; G3 Read and interpret
graphs and data.




2
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, 8) Which condensed structure below representing an alkane is not correct?
A) CH3CH2CH3
B)




C) CH3CH2CH2CH3
D)




Answer: B
Diff: 3 Var: 1
Topic: Section 23.1 Organic Molecules and Their Structures: Constitutional Isomers
Learning Obj: LO 23.1 Represent the chemical structure of alkanes as condensed structures or line drawings.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.; G3 Read and interpret
graphs and data.

9) Which of the following condensed structures represent the same molecule?




A) I and II
B) II and IV
C) III and IV
D) II and III
Answer: C
Diff: 3 Var: 1
Topic: Section 23.1 Organic Molecules and Their Structures: Constitutional Isomers
Learning Obj: LO 23.2 Identify and draw constitutional isomers of alkanes.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.; G3 Read and interpret
graphs and data.




3
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