MCQ
Solid $C{O_2}$ is known as dry ice, because
- AIt melts at $0\,^°C$
- BIt evaporates at $40\,^°C$
- ✓It evaporates at $ - 78\,^\circ C$ without melting
- DIts boiling point is more than $199\,^°C$
✓
Answer
Correct option: C.
It evaporates at $ - 78\,^\circ C$ without melting
c
(c) Solid $C{O_2}$ is knows as dry ice because it evaporates at $-78\,^°C$ without changing in the liquid state.
(c) Solid $C{O_2}$ is knows as dry ice because it evaporates at $-78\,^°C$ without changing in the liquid state.
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