Questions

TRUE / FALSE

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6 questions · timed · auto-graded

Question 11 Mark
The process of change of state from gaseous state directly to solid state is called sublimation.
Answer
False.
Correct : The process of change of state from gaseous state directly to solid state is called deposition.
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Question 21 Mark
The force of attraction between the molecules of water and that of glass is the force of cohesion.
Answer
False.
Correct : The force of attraction between the molecules of water and that of glass is the force of adhesion.
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Question 41 Mark
If the molecules in a substance have very large kinetic energies, which can completely overcome the intermolecular force of attraction between them, then the substance is a liquid.
Answer
False.
Correct : If the molecules in a substance have very large kinetic energies, which can completely overcome the intermolecular force of attraction between them, then the substance is a gas.
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Question 51 Mark
The intermolecular force of attraction increases when intermolecular space increases.
Answer
False.
Correct : The intermolecular force of attraction increases when intermolecular space decreases.
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Question 61 Mark
An atom is defined as the smallest unit of matter that has an independent existence, and carries the physical and chemical properties of that matter.
Answer
False.
Correct : A molecule is defined as the smallest unit of matter that has an independent existence, and carries the physical and chemical properties of that matter.
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TRUE / FALSE - PHYSICS STD 8 Questions - Vidyadip