Question

ASSERTION: Explosion of a fire-cracker is a chemical change.
15. | REASON:
It produces light, sound and heat.​

Answer 1

Answer:

Both assertion and reason are true and reason is the correct explanation of assertion.

Explosion of a cracker is a chemical change because the explosive reactants are transformed into gaseous products along with heat, light and sound which cannot be reversed. Hence, it is a chemical change.