Understanding Boiling Points and Intermolecular Forces

Why is it important to compare compounds with similar molar masses when ranking boiling points?

• To ensure accurate comparison of intermolecular forces

• To simplify the calculation of boiling points

• To avoid confusion with molecular structures

• To ensure the compounds are in the same phase

Which intermolecular force is present in acetic acid due to the hydrogen directly connected to oxygen?

• London dispersion forces

• Dipole-dipole interactions

• Hydrogen bonding

• Ion-ion interactions

What is the primary intermolecular force present in methyl formate?

• Hydrogen bonding

• Dipole-dipole interactions

• Ion-ion interactions

• London dispersion forces

Why does butane only exhibit London dispersion forces?

• It forms hydrogen bonds

• It is an ionic compound

• It is a non-polar molecule

• It has a high electronegativity difference

What type of bond is present in potassium fluoride due to its electronegativity difference?

• Hydrogen bond

• Ionic bond

• Metallic bond

• Covalent bond

What is the strongest intermolecular force present in potassium fluoride?

• Hydrogen bonding

• Dipole-dipole interactions

• London dispersion forces

• Ion-ion interactions

Which compound has the highest boiling point based on its intermolecular forces?

• Butane

• Potassium fluoride

• Methyl formate

• Acetic acid

What is the correct order of boiling points from highest to lowest for the given compounds?

• Potassium fluoride, Acetic acid, Methyl formate, Butane

• Acetic acid, Methyl formate, Butane, Potassium fluoride

• Butane, Methyl formate, Acetic acid, Potassium fluoride

• Methyl formate, Butane, Acetic acid, Potassium fluoride

Which intermolecular force is considered the weakest?

• Ion-ion interactions

• London dispersion forces

• Hydrogen bonding

• Dipole-dipole interactions

What determines the strength of intermolecular forces in a compound?

• The phase of the compound

• The number of atoms in the molecule

• The type of bonds between atoms

• The molecular weight of the compound