Properties and Behavior of Carbon Dioxide

The video discusses the physical properties of carbon dioxide, highlighting its colorless, odorless, and tasteless nature. It is soluble in water, with solubility increasing under pressure. Carbon dioxide is denser than air, allowing it to be collected in specific ways. It turns blue litmus paper red due to its acidic nature and forms dry ice at -78°C. Additionally, carbon dioxide is neither combustible nor a supporter of combustion.

Which of the following is NOT a physical property of carbon dioxide?

• Colorless

• Flammable

• Tasteless

• Odorless

What happens to the solubility of carbon dioxide in water when pressure increases?

• It evaporates

• It increases

• It remains the same

• It decreases

How does carbon dioxide compare to air in terms of density?

• It is 1.5 times heavier than air

• It is twice as heavy as air

• It is the same as air

• It is lighter than air

Why can carbon dioxide be collected in an inverted container?

• Because it is heavier than air

• Because it is colorless

• Because it is lighter than air

• Because it is flammable

What color does blue litmus paper turn when exposed to carbon dioxide?

• Yellow

• Red

• Green

• Blue

What acid is formed when carbon dioxide dissolves in water?

• Hydrochloric acid

• Carbonic acid

• Nitric acid

• Sulfuric acid

At what temperature does carbon dioxide turn into dry ice?

• -78 degrees Celsius

• 0 degrees Celsius

• 100 degrees Celsius

• -100 degrees Celsius

What is dry ice primarily used for?

• Heating

• Lighting

• Cooling

• Combustion

Which statement is true about carbon dioxide's combustion properties?

• It is highly flammable

• It supports combustion

• It neither supports nor is combustible

• It is combustible

Which gas is known to support combustion?

• Oxygen

• Hydrogen

• Nitrogen

• Carbon dioxide