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Railways PYQCBT 1 2016

RRB NTPC · Question 92

What is dry ice? A. Dried Ice B. Frozen snow in the desert C. Solid form of carbon dioxide D. Solid form of hydrogen peroxide

  1. D

  2. C

  3. A

  4. B

Show answer & explanation

Answer: (B) C

Explanation

Dry ice is solid carbon dioxide; it sublimes at −78.5 °C without melting and is used for cooling and stage fog.