4) Predict which bond is the most polar in ethanol, CH3CH2OH.
A) C-C
B) C-H
C) C-O
D) O-H
Answer: D
Difficulty: 2 Medium
Section: 01.04
Topic: Structure and Bonding
Bloom's: 4. Analyze
Chapter: 01
Subtopic: Types of bonds; Bond properties
5) What can be said about the polarity of the C=O bond?
A) C and O have the same electronegativity; the bond is nonpolar
B) the C=O bond is polar; the O atom bears a partial negative charge
C) the C=O bond is nonpolar; the C atom bears a partial positive charge
D) the C=O bond is polar; the C atom bears a partial negative charge
Answer: B
Difficulty: 2 Medium
Section: 01.04
Topic: Structure and Bonding
Bloom's: 2. Understand
Chapter: 01
Subtopic: Types of bonds; Bond properties
, 6) In which of the following compounds would you expect Cl to have a partial positive charge?
A) HCl
B) CCl4
C) NaCl
D) HOCl
Answer: D
Difficulty: 2 Medium
Section: 01.04
Topic: Structure and Bonding
Bloom's: 2. Understand
Chapter: 01
Subtopic: Types of bonds; Bond properties
7) In which of the following does hydrogen have a partial negative charge based on
electronegativity?
A) BH3
B) CH4
C) NH3
D) H2O
Answer: A
Difficulty: 2 Medium
Section: 01.04
Topic: Structure and Bonding
Bloom's: 2. Understand
Chapter: 01
Subtopic: Types of bonds; Bond properties
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