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Question

Matter with no fixed shape but definite volume exist in following state.


A

Solid

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B

Liquid

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C

Gas

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D

gaseous

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Solution

The correct option is B

Liquid


Explanation for correct option

(B) - Liquid

Liquid state -

  • Particles are loosely packed.
  • The interparticle force of attraction is lesser than the solids and so the particles are present at some distance from each other.
  • The inter-particle space is more, and so the particle move freely around other particles.
  • Kinetic energy of the particles is more than the solids.
  • Liquids have a definite volume but no definite shape.

Explanation for incorrect options

(A) - Solid

  • The particles are tightly packed.
  • The interparticle force of attraction is very strong.
  • The interparticle space is almost negligible and so the movement of particles is very limited and they move about their fixed position only.
  • Kinetic energy of the particles is very low.
  • Solids have a fixed shape and definite volume.

(C) - Gas, (D) - Gaseous

  • In gaseous state, the particle is present far apart from each other.
  • The inter-particle force of attraction is negligible as compared to solids and liquids. Hence the particle moves around freely and independently.
  • The interparticle space is very large and so the gases occupy the entire space available in a container and do not have a definite volume and can be compressed easily.
  • Kinetic energy of the particle is very high. The particles move around freely colliding with each other and also with the walls of the container.
  • Gases have no fixed shape and no fixed volume.

Hence option (B) is the correct answer.


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