Q. Which of the following statements is/are correct?
1.Solids have definite volume and definite shape.
2.Liquids have definite volume but do not have definite shape.
3.Gases have neither definite volume nor definite shape.
Choose the correct answer from below given codes:

[A] 1 only

[B] 1 and 2 only

[C] 2 and 3 only

[D] 1, 2 and 3

Answer: D
Notes:

Explanation: Particles are held very close to each other in solids in an orderly fashion and there is not much freedom of movement. In liquids, the particles are close to each other but they can move around.

However, in gases, the particles are far apart as compared to those present in solid or liquid states and their movement is easy and fast.

Because of such arrangement of particles, different states of matter exhibit the following characteristics:

  1. Solids have definite volume and definite shape.
  2. Liquids have definite volume but do not have definite shape. They take the shape of the container in which they are placed.
  3. Gases have neither definite volume nor definite shape. They completely occupy the space in the container in which they are placed.

Source: Science NCERT