McqMate
| Q. |
Dry ice is the solid form of : |
| A. | Air 7 |
| B. | Carbon dioxide |
| C. | Nitrogen |
| D. | Water |
| Answer» B. Carbon dioxide | |
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Explanation: Dry ice, sometimes referred to as "cardice," is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower tem-perature than that of water ice and not leaving any residue. It is useful for preserving frozen foods, ice cream, etc., where mechanical cooling is unavailable. |
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