Question : What is dry ice?
Option 1: Solid Carbon dioxide
Option 2: Solid Nitrogen dioxide
Option 3: Solid Sulphur dioxide
Option 4: Solid water
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Correct Answer: Solid Carbon dioxide
Solution : The correct option is Solid Carbon dioxide .
Dry ice is solid carbon dioxide (CO 2 ) at a temperature of -78.5°C. It sublimates immediately from a solid to a gas, generating carbon dioxide gas that can displace oxygen in confined environments. Because of its extreme cold and the possibility of oxygen displacement, it should be handled with caution. Dry ice is used to transport and store frozen commodities, medical supplies and perishable objects that must be kept at extremely low temperatures. In laboratories, it's also employed for low-temperature research.
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