Multiple choice

Which of the following is not an example of a physical change?

  1. Glowing of an electric bulb

  2. Fermentation of cane juice, fruit juice, etc.

  3. Dissolution of sulphur in carbon disulphide

  4. Freezing of water in a fridge

  5. Dissolution of resin in alcohol
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. Fermentation of cane juice, fruit juice, etc. is irreversible and thus, is not an example of a physical change.

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