Question

Pick the change that can be reversed from the following.

• A. Cutting of trees
• B. Melting of ghee
• C. Burning of the candle
• D. Blooming of flowers

Answer 1

The correct option is B

Melting of ghee

Explanation of correct option.

Option (B) Melting of ghee

• Any changes which can be reversed or are a temporary conversion are known as reversible changes.
• Examples of reversible changes are melting and boiling.
• The melted ghee can be frozen again that is, this change can be reversed.

Explanation of incorrect options:

Option (A) Cutting of trees.

• Irreversible changes are permanent changes and the reactants react to form an entirely new compound and cannot be reversed.
• Examples – Burning of a piece of paper, cooking of the raw egg.
• The trees once cut down, cannot come back to their original state.
• Hence, option (A) is correct.

Option (C) Burning of the candle.

• The burning of a candle is an irreversible change.
• A candle once burnt will change its shape and once the candle melts, the wax cannot be moulded again.
• Hence, option (C) is incorrect.

Option (D) Blooming of flowers.

• A flower once bloomed, cannot again become a pulp.
• It is irreversible as the flower once bloomed cannot change into bud again.
• Hence, option (D) is incorrect.

Therefore, option (B) is the correct answer.