Carbon Dioxide Properties and Reactions

The video tutorial explains the physical and chemical properties of carbon dioxide. It covers its density, solubility in water, and reactions with other substances. The tutorial also discusses how carbon dioxide reacts with lime water to form calcium carbonate and calcium bicarbonate.

What is a notable physical property of carbon dioxide that allows it to be poured from one container to another?

• It is highly flammable.

• It is heavier than air.

• It is magnetic.

• It is lighter than air.

What happens when carbon dioxide dissolves in water?

• It forms sulfuric acid.

• It forms carbonic acid.

• It forms nitric acid.

• It forms hydrochloric acid.

What is the chemical formula for carbonic acid formed when carbon dioxide dissolves in water?

• HNO3

• H2SO4

• H2CO3

• HCl

What is the effect of carbon dioxide on blue litmus paper?

• It has no effect.

• It turns it yellow.

• It turns it green.

• It turns it red.

Which of the following is true about carbon dioxide's role in combustion?

• It supports combustion.

• It is combustible.

• It enhances combustion.

• It is a non-supporter of combustion.

What is observed when a burning piece of magnesium is introduced into carbon dioxide?

• It extinguishes immediately.

• It forms magnesium oxide and carbon.

• It forms magnesium carbonate.

• It forms magnesium chloride.

Which of the following metals reacts with carbon dioxide to form sodium carbonate and carbon?

• Potassium

• Magnesium

• Sodium

• Calcium

What is the result of passing carbon dioxide through lime water?

• The lime water turns clear.

• The lime water turns blue.

• The lime water turns green.

• The lime water turns milky.

What compound is formed when carbon dioxide reacts with calcium hydroxide in lime water?

• Calcium nitrate

• Calcium chloride

• Calcium sulfate

• Calcium carbonate

What happens to calcium carbonate when excess carbon dioxide is added?

• It remains unchanged.

• It converts to calcium bicarbonate.

• It converts to calcium oxide.

• It converts to calcium sulfate.