Question

Which is of following is not physical change a) dissolution of salt in water b) combustion of lpg

Answer 1

B) Combustion of LPG

Answer 2

Answer:

The correct answer of this question is option B, combustion of LPG.

Explanation:

Physical changes are not permanent and are easily reversible process in most of the cases.

But,the combustion is not reversible and burned-out LPG cannot be restored.

And, oxidation is also included in the combustion process, which is a chemical change.

That's why the correct answer of this question is option B.