Physical Properties and Intermolecular Forces (Grade 12 NSC Matric Physical Sciences): Quizzes
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Practise the questions
10 questions from this quiz
Which order correctly ranks intermolecular forces from strongest to weakest?
Which order correctly ranks intermolecular forces from strongest to weakest?
H-bonding > dipole-dipole > van der Waals
Hydrogen bonding occurs when H is covalently bonded to which types of atoms?
Hydrogen bonding occurs when H is covalently bonded to which types of atoms?
Highly electronegative atoms (N, O, or F)
How does viscosity relate to the strength of intermolecular forces?
How does viscosity relate to the strength of intermolecular forces?
Stronger forces increase viscosity
What is the relationship between intermolecular forces and vapour pressure?
What is the relationship between intermolecular forces and vapour pressure?
Weaker forces lead to higher vapour pressure
Why do substances with stronger intermolecular forces have higher boiling points?
Why do substances with stronger intermolecular forces have higher boiling points?
More energy needed to overcome the forces
How does vapour pressure affect flash point and flammability?
How does vapour pressure affect flash point and flammability?
Higher vapour pressure = lower flash point
What type of intermolecular force is present in all molecules, including non-polar ones?
What type of intermolecular force is present in all molecules, including non-polar ones?
Induced-dipole forces (van der Waals)
Which functional groups can form hydrogen bonds?
Which functional groups can form hydrogen bonds?
, , and
Why are solids typically the most dense phase of matter?
Why are solids typically the most dense phase of matter?
Strong forces pull molecules tightly together
Between which types of molecules do dipole-dipole forces occur?
Between which types of molecules do dipole-dipole forces occur?
Polar molecules only