Question

What is Dry Ice?

• A. Solidified Carbon Dioxide
• B. Transparent plastic decoy which looks like ice
• C. Sulfur dioxide at -57 degree Celsius
• D. Chemically treated ice to make it dry.

Answer 1

The Correct Option is A

Dry Ice is the solid form of carbon dioxide, known scientifically as CO₂. It is called "dry" because, unlike ordinary ice, it does not melt into a liquid. Instead, when it warms up, it sublimates directly from a solid to a gas. This property makes it ideal for a wide range of applications where refrigeration is required without moisture. It is commonly used in food preservation, special effects for fog in entertainment, and in shipping perishable items. The process involves cooling carbon dioxide gas to exceedingly low temperatures to form a dense, white, solid mass. Unlike the incorrect options provided:

• Transparent plastic decoy which looks like ice is not related to dry ice.
• Sulfur dioxide at -57 degrees Celsius does not form dry ice.
• Chemically treated ice to make it dry is a misleading description and does not align with the true nature of dry ice.