Question

In its solid state, carbon dioxide is commonly called as:

• A. dry $C{O}_2$
• B. dry ice
• C. carbon black
• D. carbonic acid.

Answer 1

Answer: (B)

dry ice

Dry ice, is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice and not leaving any residue (other than incidental frost from moisture in the atmosphere). It is useful for preserving frozen foods where mechanical cooling is unavailable.