Question

Classify the following changes into physical and chemical change:

Rotting of egg

Answer 1

Physical change: It is a type of change in which there is no change in the substance's chemical properties and no new substance is formed.

• It is a type of reversible change
• Reversible change: It is a type of change that can be reversed easily and completely.
• For example Melting of ice, freezing of water, etc.

Chemical change: It is a type of change in which there is a change in the substance's chemical properties and a new substance is formed.

• It is a type of irreversible change
• Irreversible change: It is a type of change that cannot be reversed. Chemical composition will change.
• For example conversion of curd to the milk, rusting of iron.

Rotting of eggs:

• It will result in a change in the smell which comes under chemical eggs.
• Rotting of eggs will result in a change in their chemical composition.

Therefore, the rotting of eggs is a type of chemical change.