Change of gaseous state directly to solid state without going through liquid state is called-

Correct option is A

(a) Deposition

Sol.Deposition is the process in which a gas changes directly into a solid without passing through the liquid phase. Example: Frost formation on cold surfaces.

Information Booster:

• Sublimation is the reverse of deposition (solid → gas).
• Condensation is gas changing into a liquid.
• Freezing is liquid changing into a solid.
• Examples of deposition: Frost, formation of snowflakes.
• Examples of sublimation: Dry ice (solid CO₂), camphor.

Additional Information:

• Condensation occurs in clouds, leading to rain.
• Freezing occurs at 0°C for water, but varies for other substances.