Multiple choice

Dry ice is composed of

  1. carbon dioxide

  2. hydrocarbon

  3. water

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

Dry ice is the solid form of carbon dioxide (CO₂). It's called 'dry' because it sublimates (transitions directly from solid to gas) without becoming liquid, unlike water ice. Options B, C, and D are incorrect - dry ice is not made of hydrocarbons, water, or chlorine.

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