Q. What is dry ice?
Answer: Solid carbon dioxide
Notes: "Dry ice" is solid carbon dioxide (CO2). Carbon dioxide freezes at -78.5 degrees Centigrade. When dry ice "melts" it undergoes a process called sublimation. This means that it is converted from a solid directly to a gas, bypassing the intermediate liquid stage. This is where the name "dry ice" comes from - when it melts, you never get any liquid, hence it's "dry".

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 13 in Chemistry-2-Matter and Its States in above course in App.