SSC CHSL 2025 PYQ — Question 94

SSC CHSL - 24 Nov 2025 - Shift 1 • General Awareness • Q94

What is the change of state directly from gas to solid without changing into liquid state known as?

Show answer & explanation

Correct answer: B

Explanation

  • The change from a gas to a solid state directly without changing to a liquid state is called deposition.
  • This process is the exact opposite of sublimation.

Processes of change of state:

Changes between states of matter are known by the following names:-

  • Deposition: Gas → Solid (e.g., water vapor in extremely cold air directly turning into frost or ice crystals).
  • Sublimation: Solid → Gas (e.g., burning camphor or dry ice).
  • Freezing: Liquid → Solid (e.g., water turning into ice).
  • Evaporation: Liquid → Gas (e.g., water turning into steam).