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Which one of the following is called dry ice?

June 1, 2025 by rawan239

Which one of the following is called dry ice?

Solid carbon dioxide

Liquid carbon dioxide

Liquid nitrogen

Liquid ammonia

This question was previously asked in

UPSC NDA-2 – 2018

Download PDF Attempt Online

Dry ice is the solid form of carbon dioxide (CO₂).

– At atmospheric pressure, solid carbon dioxide sublimes directly into a gas without melting into a liquid, hence the name “dry ice”.
– Its sublimation temperature at 1 atm is -78.5 °C.

Dry ice is used as a cooling agent in various applications, such as preserving food, creating fog effects, and cooling materials in laboratories. Liquid carbon dioxide exists under high pressure. Liquid nitrogen and liquid ammonia are different substances with different properties and uses.

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