Which of the following is known as 'Dry ice?'

Correct option is B

The correct answer is (b) Solid carbon dioxide.
· Dry ice is the solid form of carbon dioxide (CO₂). It is called "dry" because, unlike regular ice (solid water), it sublimates directly into gas without passing through a liquid phase under normal atmospheric pressure. Dry ice is commonly used for refrigeration and creating fog effects in stage productions.
Information Booster:
· Sublimation Process: Dry ice sublimates directly from a solid to a gas at -78.5°C (-109.3°F), which means it doesn't melt like regular ice.
· Uses of Dry Ice: It is commonly used in shipping perishable goods, preserving biological samples, and creating fog effects in theaters and concerts.
· Handling Dry Ice: Because of its extremely cold temperature, dry ice must be handled with protective gloves to avoid frostbite.
Other Options Information:
· Liquid Carbon Dioxide:Liquid carbon dioxide exists only under high pressure or at very low temperatures. It is used in industries like food processing (carbonation of beverages) and as a refrigerant.
· Carbon Monoxide:Carbon monoxide (CO) is a colorless, odorless, and toxic gas formed by incomplete combustion of carbon-containing fuels. It is hazardous and can cause carbon monoxide poisoning when inhaled.
· Gaseous Carbon Dioxide:Gaseous carbon dioxide (CO₂) is naturally found in the Earth's atmosphere. It plays a key role in plant photosynthesis and is used in carbonated drinks. Excessive CO₂ in the atmosphere contributes to global warming and the greenhouse effect.