Vinegar and Baking Powder Reactions

Kalyani, a class seven student, introduces herself and demonstrates activity 6.8. She uses vinegar and baking powder to create a reaction that resembles a volcano. The video explains the materials needed and the chemical reaction between acetic acid in vinegar and baking soda, resulting in carbon dioxide and other substances.

What is the first step Kalyani mentions in her experiment?

• Adding baking soda to the plate

• Pouring vinegar into a glass

• Mixing vinegar and water

• Heating the vinegar

Which ingredient does Kalyani use as a substitute for baking soda?

• Baking powder

• Flour

• Salt

• Sugar

What visual effect does Kalyani observe when she adds the baking powder?

• It evaporates

• It turns blue

• It bubbles like a volcano

• It freezes

What sound is produced when baking powder is added to vinegar?

• A popping sound

• A sizzling sound

• A whistling sound

• A crackling sound

What gas is released during the reaction between vinegar and baking soda?

• Nitrogen

• Carbon dioxide

• Hydrogen

• Oxygen

What type of acid is present in vinegar?

• Hydrochloric acid

• Citric acid

• Acetic acid

• Sulfuric acid