Question

Solid $C{O}_2$ is known as dry ice:

• A. It melts at $0^{\circ }C$
• B. Its B.P. is more than $199^{\circ }C$
• C. It evaporates at $-78^{\circ }C$ without melting
• D. None of the above

Answer 1

Answer: (C)

Solid $C{O}_2$ is known as dry ice because it evaporates at $-78^{\circ }C$ without melting.