Intermolecular Forces

Question 1

Hydrogen bonding is necessary for

Revolt · Accepted Answer

forming double-stranded DNA molecules.

Question 2

van der Waals forces can best be described as the attractive or repulsive forces that are formed

Revolt · Accepted Answer

by a random, short-lived redistribution of electrons.

Question 3

Which of the following most likely requires intermolecular forces?

Revolt · Accepted Answer

a spider walking on the bottom of a leaf

Question 4

Ming has two unknown substances. One is nonpolar, and the other is polar.Which process would most likely help Ming identify which substance is polar and which is nonpolar?

Revolt · Accepted Answer

Test for an odor. The nonpolar substance should have a higher volatility and stronger odor because of its London dispersion forces.

Question 5

Which forces can be classified as intramolecular?

Revolt · Accepted Answer

covalent bonds

Question 6

When a polar molecule causes a charge redistribution in a nonpolar molecule, what are the molecules of the mixture most likely experiencing?

Revolt · Accepted Answer

dipole-induced dipole interactions

Question 7

Which statement best explains why water has a higher boiling point than ethane?

Revolt · Accepted Answer

Ethane molecules have no hydrogen bonds and need less energy to separate.

Question 8

Which statement about van der Waals forces is true?

Revolt · Accepted Answer

When the forces are weaker, a substance will have higher volatility.

Question 9

Which interaction produces dispersive forces by creating temporary dipoles that induce dipoles in other molecules?

Revolt · Accepted Answer

induced dipole-induced dipole

Question 10

Which forces involve nonpolar molecules?

Revolt · Accepted Answer

London dispersion forces and dipole-induced dipole forces

Intermolecular Forces Answers

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