Polarity and IMFs

The boiling points of three halide compounds are shown above. Which of the following identifies the substance that  has the strongest intermolecular forces and provides reasoning?

• CH2Cl2, because it has the lowest boiling point.

• CH2Cl2, because it exhibits hydrogen bonding

• CH2Br2, because it has the highest boiling point

• CH2I2, because it has the highest boiling point

Tags

NGSS.HS-PS1-3

For a container of liquid trimethylamine, what intermolecular forces would be present?

• London Dispersion Forces

• London Dispersion Forces, Dipole-Dipole

• London Dispersion Forces, Dipole-Dipole, Hydrogen Bonding

• London Dispersion Forces, Dipole-Dipole, Covalent bonds

Which compound contains only London Dispersion Forces and Dipole-Dipole IMFs?

Rank these in order of strength:
London forces
hydrogen bond
dipole-dipole attraction

• dipole-dipole>hydrogen bond>London

• London>dipole-diple>hydrogen bond

• hydrogen bond>dipole-dipole>London

Which force is only found between polar covalent molecules?

• Ionic bond

• Dipole Dipole

• London Dispersion Force

• Covalent bond

In this force, electron movement cause a slight charge at a single instant. This charge is temporary.

• Hydrogen bonding

• Dipole Dipole

• London Dispersion Forces

• Ionic Bonds

Which is not a bond, but is an intermolecular force?

• Covalent Bond

• Ionic Bond

• Hydrogen Bond

• These are all bonds

Nonpolar molecule samples all contain

(Check all that apply)

• Hydrogen Bonding

• Dipole Dipole

• London Dispersion Forces

• Ionic Bonds

Which substance has the weakest intermolecular forces?

• Substance A, boiling point of 75 °C

• Substance B, boiling point of 105 °C

• Substance C, boiling point of 25 °C

• Substance d, boiling point of 45 °C

The weakest IMF is

• Dipole-Dipole

• London Dispersion Forces

• Hydrogen Bonding