Chemistry An Introduction To General Organic And Biological Chemistry 12th Edition By Timberlake – Test Bank

Chapter 11 Introduction to Organic Chemistry: Hydrocarbons

11.1 Multiple-Choice Questions

1) Which of the following is true of nonane, , which has a density of 0.79 g/mL, melts at -51 °C, and boils at 151 °C?
A) Nonane is soluble in water.
B) Nonane is a gas at room temperature.
C) Nonane is a solid at room temperature.
D) Nonane does not undergo combustion.
E) Nonane floats on the surface of water.
Answer: E
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.

2) A formula that shows the arrangement of all bonds in a molecule is called a(n) ________.
A) molecular formula
B) expanded structural formula
C) condensed structural formula
D) condensed molecular formula
E) isomeric formula
Answer: B
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.

3) In the three-dimensional structure of methane, , the hydrogen atoms attached to a carbon atom are aligned ________.
A) in a straight line
B) at the corners of a square
C) at the corners of a tetrahedron
D) at the corners of a rectangle
E) at the corners of a cube
Answer: C
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.

4) A hydrocarbon contains only the elements ________.
A) hydrogen and oxygen
B) carbon and oxygen
C) carbon and hydrogen
D) carbon, hydrogen, and oxygen
E) carbon, hydrogen, and nitrogen
Answer: C
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.
5) Which of the following is not typical of most hydrocarbons?
A) high melting point
B) poor solubility in water
C) low boiling point
D) covalent bonding
E) high flammability
Answer: A
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.

6) Organic chemistry is the study of the chemistry of compounds of ________.
A) oxygen
B) hydrogen
C) living things
D) polymers
E) carbon
Answer: E
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.

7) How many valence electrons does carbon have?
A) one
B) two
C) three
D) four
E) five
Answer: D
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.

8) Carbon atoms always have how many covalent bonds?
A) one
B) two
C) three
D) four
E) five
Answer: D
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.
9) The carbon atoms in saturated hydrocarbons ________.
A) have only single bonds
B) contain at least one double bond
C) contain at least one triple bond
D) contain a benzene ring
E) contain both a double and a triple bond
Answer: A
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.

10) An organic compound composed of carbon and hydrogen connected only by single bonds is an ________.
A) alkane
B) alkene
C) alkyne
D) aromatic compound
E) alcohol
Answer: A
Page Ref: 11.1
Learning Obj.: 11.1
Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry.