Intermolecular Forces
Chemistry ⇒ Chemical Bonding and Structure
Intermolecular Forces starts at 10 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Intermolecular Forces.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
A solution contains NaCl dissolved in water. Which type of intermolecular force is primarily responsible for the interaction between Na+ ions and water molecules?
A student observes that ethanol (C2H5OH) mixes well with water but hexane (C6H14) does not. Explain this observation in terms of intermolecular forces.
Describe how molecular size affects the strength of London dispersion forces.
Describe how the shape of a molecule can affect its intermolecular forces and physical properties.
Describe the difference between intermolecular and intramolecular forces.
A solution contains NaCl dissolved in water. Which type of intermolecular force is primarily responsible for the interaction between Na+ ions and water molecules?
A student observes that ethanol (C2H5OH) mixes well with water but hexane (C6H14) does not. Explain this observation in terms of intermolecular forces.
Consider the following scenario: A nonpolar gas is compressed at low temperature, and it condenses into a liquid. Which type of intermolecular force is responsible for this phase change?
Which of the following best explains why oil and water do not mix?
(1) Oil is polar and water is nonpolar.
(2) Oil is nonpolar and water is polar.
(3) Both oil and water are nonpolar.
(4) Both oil and water are polar.
Which of the following compounds would have the highest boiling point?
(1) NH3
(2) PH3
(3) AsH3
(4) SbH3
Which of the following is NOT a type of intermolecular force?
(1) Covalent bond
(2) Hydrogen bond
(3) Dipole-dipole interaction
(4) London dispersion force
Which of the following is the strongest type of intermolecular force?
(1) London dispersion forces
(2) Dipole-dipole interactions
(3) Hydrogen bonding
(4) Ion-dipole interactions
Fill in the blank: In order for hydrogen bonding to occur, hydrogen must be bonded to __________, __________, or __________.
Fill in the blank: The ability of a molecule to induce a temporary dipole in another molecule is called __________.
Fill in the blank: The boiling point of a substance generally increases as the strength of its __________ increases.
Fill in the blank: The intermolecular force responsible for the high surface tension of water is __________.
True or False: All molecules with polar bonds are polar molecules.
True or False: Dipole-dipole interactions are stronger than London dispersion forces for molecules of similar size.
True or False: Hydrogen bonding can only occur between molecules containing hydrogen and oxygen atoms.
True or False: Ion-dipole interactions are important in solutions of ionic compounds in polar solvents.
