Question

C. Write true or false. Correct the false statements.
1. 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.

2. The intermolecular force of attraction increases when intermolecular space increases.
3. 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.
4. When a gas is cooled, its molecules lose energy and slow down.
5. The force of attraction between the molecules of water and that of glass is the force of cohesion.
6. The process of change of state from gaseous state directly to solid state is called sublimation.
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Answer 1

Explanation:

1. TRUE
2. FALSE,The intermolecular force of attraction decrease when intermolecular space increases.
3. True
4. True
5. True
6. True

Answer 2

Answer:

1. FALSE, A molecule is defined as the smallest unit of matter that has an independent existence and carries a physical and chemical properties of that matter.

2. FALSE, the intermolecular force of attraction decrease when intermolecular space increase.

3. FALSE, if the molecules in a substance have very large kinetic energy which can completely overcome the intermolecular force of attraction between them then the substance is a gas .

4. TRUE

5. FALSE , the force of attraction between the molecules of water and that of glass is the force of adhesion.

6. FALSE, the process of change of state from gaseous state directly to solid state is called deposition. or

the process of change of state from solid state directly to gaseous state is known as sublimation.