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Q: Which of the following is true with respect to particles of solid?
  • A. They move randomly.
  • B. There are large gaps between them.
  • C. They are configured in a systematic manner
  • D. They have minimum attraction.
Correct Answer: Option C - Those substances which have fixed size and volume and have high attraction force between particles are called as solids. That is, each solid component consists of particles, these particles are molecules/ atoms. Characteristics- (1) Solids are incompressible and hard and their constituent particles have less space between them. (2) They have higher density in comparison to gas and liquid. (3) The particles of solids are configured in a systematic way and their melting point is often high.
C. Those substances which have fixed size and volume and have high attraction force between particles are called as solids. That is, each solid component consists of particles, these particles are molecules/ atoms. Characteristics- (1) Solids are incompressible and hard and their constituent particles have less space between them. (2) They have higher density in comparison to gas and liquid. (3) The particles of solids are configured in a systematic way and their melting point is often high.

Explanations:

Those substances which have fixed size and volume and have high attraction force between particles are called as solids. That is, each solid component consists of particles, these particles are molecules/ atoms. Characteristics- (1) Solids are incompressible and hard and their constituent particles have less space between them. (2) They have higher density in comparison to gas and liquid. (3) The particles of solids are configured in a systematic way and their melting point is often high.