Multiple choice general knowledge science & technology

What does dry ice become when it sublimates?

  1. Carbon dioxide

  2. Carbon monoxide

  3. Water

  4. Salt water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dry ice is solid carbon dioxide (CO2). When it sublimates (turns directly from solid to gas), it becomes carbon dioxide gas. This is why dry ice 'disappears' without leaving a liquid residue. Carbon monoxide is a different, toxic gas.

Keep practicing — related questions