Multiple choice general knowledge science & technology

What does dry ice become when it sublimates?

  1. Water

  2. Carbon di oxide

  3. Carbon Monoxide

  4. Nitrous oxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dry ice is solid carbon dioxide (CO₂). When it sublimates (transitions directly from solid to gas without becoming liquid), it becomes carbon dioxide gas. The process releases CO₂ gas visible as fog when it contacts moist air. It doesn't become water (which would require H₂O), carbon monoxide (CO), or nitrous oxide (N₂O). This is a fundamental property of dry ice used for cooling and special effects.

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