3.3 Molecular forces

Intermolecular bond refers to the bonding forces that act between molecules when substances are in the liquid or solid state.

• True

• False

The molecular compound methane, CH4, has a lower boiling point and melting point than ethanol, C2H5OH.

• True

• False

High boiling point is associated with a higher number of ________ within a molecule.

The molecular compound CH3OH, has a higher boiling point and melting point than C6H13OH.

• True

• False

Forces that bond atoms or ions together within a compound are called ____________ forces.

Higher polarity of a molecule results in

• higher chances of a dipole-dipole moment

• lower boiling point

• higher boiling point

• lower chance of a dipole-dipole moment

Elements with higher electronegativity are found on which side of the periodic table?

• Bottom right

• Top right

• Bottom left

• Top left

Electronegativity refers to

• an atom that is unable to conduct electricity

• How negative an atom is

• the ability of an atom to give up its electrons

• the ability of an atom to hold on to its electrons

Which is a temporary intermolecular force?

• van der waals

• dipole-dipole

• London force

• Hydrogen bond

Which is the weakest intermolecular force?

• London force

• dipole-dipole

• covalent bond

• Hydrogen bond