2 Chemical Foundations Test Bank Section 2.1 1. Covalent bonds between which of the following pairs of atoms are nonpolar? a. C–C b. C–H c. O–H d. a and b Ans: d Question Type: Multiple Choice Chapter: 2.1 Blooms: Remembering Difficulty: Easy 2. Which of the following is a noncovalent interaction? a. hydrophobic effect b. ionic interactions c. van der Waals interactions d. all of the above Ans: d Question Type: Multiple Choice Chapter: 2 Blooms: Remembering Difficulty: Easy 3. Which of the following is the strongest interaction? a. hydrogen bond b. ionic bond c. phosphoanhydride bond d. van der Waals interaction Ans: c Question Type: Multiple Choice Chapter: 2 Blooms: Understanding Difficulty: Easy 4. Which of the following is the weakest interaction? a. hydrogen bond b. ionic bond c. phosphoanhydride bond d. van der Waals interaction Ans: d Question Type: Multiple Choice