Chemical Reaction of Nitric Acid with Eggshell

The video tutorial explains the chemical reaction that occurs when nitric acid is added to an eggshell. Eggshells contain calcium carbonate, and when they react with nitric acid, carbon dioxide gas is released as a result of the reaction.

What is the main topic discussed in the introduction?

• The uses of eggshells

• The properties of nitric acid

• The history of nitric acid

• The reaction between nitric acid and eggshell

What is the primary component of eggshells?

• Calcium sulfate

• Magnesium oxide

• Calcium carbonate

• Sodium chloride

Which gas is released when nitric acid reacts with eggshell?

• Oxygen

• Hydrogen

• Nitrogen

• Carbon dioxide

What happens to the eggshell when nitric acid is added?

• It releases oxygen gas

• It forms a solid precipitate

• It remains unchanged

• It dissolves and releases carbon dioxide gas

Why does carbon dioxide gas evolve in the reaction?

• Because of the high temperature

• Due to the presence of water

• Because of the presence of calcium carbonate in the eggshell

• Due to the presence of oxygen in the air