Dry Ice sublimes at which temperature?

A. 78°C

B. 68°C

C. -68°C

D. -78°C

Answer: Option D

Solution(By Examveda Team)

Dry ice is a solid form of carbon dioxide. It is commonly used for temporary refrigeration as carbon dioxide does not have a liquid state at atmospheric pressure and sublimates directly from the solid-state to the gas state. It is primarily used as a cooling agent.
Dry ice sublimes at -78°C (194.7 K) at the earth's atmospheric pressure.