Multiple choice general knowledge science & technology

Dry ice is the second name of?

  1. Silicon

  2. Gold

  3. Solid Corbondioxide

  4. none of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Dry ice is solid carbon dioxide (CO₂). It sublimates (transitions directly from solid to gas) at -78.5°C at atmospheric pressure. Option C has a typo ('Corbondioxide' instead of 'carbon dioxide') but is clearly the intended correct answer. Silicon (A) and gold (B) are elements at room temperature, not frozen gases.

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