Year 11 Chemistry - IMFs

Identify the strongest type of IMF

• Dipole-dipole

• Hydrogen bonding

• Dispersion

Determine the IMF for NH3

• Dipole-dipole

• Dispersion

• Hydrogen bonding

True or false: hydrocarbons have dispersion forces as their dominant IMFs

• True

• False

Intermolecular forces (IMFs) are interactions _______ molecules, compounds or substances.

Select the most appropriate statement for hydrogen bond interactions

• Hydrogen is attracted to nitrogen, oxygen and fluorine

• Hydrogen has a strong difference in electronegativity towards N, O or F. This allows interactions between the atoms due to strong dipole differences (delta + and -)

• Hydrogen accepts electrons, whilst N, O and F donate electrons

• Hydrogen repels N, O and F

Identify the correct IMF that CS2 would have

• Dispersion

• Dipole-dipole

• Hydrogen bonding

Select the correct IMF that cyclohexane would exhibit

• Dispersion

• Dipole-dipole

• Hydrogen bonding

Select the correct IMF that HF (hydrogen fluoride) would exhibit

• Dispersion

• Dipole-dipole

• Hydrogen bonding

Select the correct IMF that CH4 (methane) would exhibit

• Dispersion

• Hydrogen bonding

• Dipole-dipole

True or false: 2-chlorobutane would only have dispersion forces with other molecules of itself

• True

• False