AS1 T4 Intermolecular Forces

What type of intermolecular force is described as the attraction between instantaneous and induced dipoles on neighbouring molecules?

• Permanent dipole-dipole attractions

• Hydrogen bonding

• Van der Waals' forces

• Ionic bonding

Which of the following is NOT a type of intermolecular force?

• Van der Waals' forces

• Permanent dipole-dipole attractions

• Hydrogen bonding

• Covalent bonding

What causes a dipole in an atom?

• The presence of a nucleus

• The movement of electrons in orbitals

• The presence of protons

• The presence of neutrons

What type of intermolecular force is stronger than van der Waals' forces?

• Covalent bonds

• Ionic bonds

• Permanent dipole-dipole interactions

• Metallic bonds

Which of the following molecules can form hydrogen bonds?

• Methane (CH4)

• Ethanol (C2H5OH)

• Propane (C3H8)

• Bromine (Br2)

What type of intermolecular force is responsible for the higher boiling point of iodine compared to bromine?

• Covalent bonds

• Ionic bonds

• Hydrogen bonds

• van der Waals' forces

What is the role of the lone pair of electrons on the oxygen atom in water molecules?

• To form covalent bonds

• To form hydrogen bonds

• To form ionic bonds

• To form metallic bonds

Which of the following statements is true about van der Waals' forces?

• They are stronger than hydrogen bonds

• They are weaker than hydrogen bonds

• They are the same strength as hydrogen bonds

• They do not affect boiling points

Which one of the following will have the highest boiling point?

• bromine

• chlorine

• fluorine

• iodine

Ammonia is a substance that can form hydrogen bonds. However, ammonia has a pyramidal structure. Explain why ammonia is extremely soluble in water.

• Because ammonia is a gas

• Because ammonia can form hydrogen bonds with water

• Because ammonia is non-polar

• Because ammonia has a high molecular weight