MCQ
Dry ice is:
  • A
    Solid $\mathrm{NH}_3$.
  • B
    Solid $\mathrm{SO}_2$.
  • Solid $\mathrm{CO}_2$.
  • D
    Solid $\mathrm{N}_2$.

Answer

Correct option: C.
Solid $\mathrm{CO}_2$.
Solid $\mathrm{CO}_2$ is called dry ice becaouse it is used for making ice bath for organic reaction in laboratory. It is prepared by cooling $\mathrm{CO}_2$ gas at high pressure.

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