Question

Q 14: One of the following processes 2 po
does not involve a chemical reaction
i.e, :

1.melting of candle wax when heated
2. burning of candle wax when heated​

Answer 1

Answer:

1.melting of candle wax when heated

Explanation:

--/ When a candle wax is melting, it turns into wax, which can be made into a candle and used again. So it is not involving a chemical change [ In physical changes, the object can be brought back into its original form ]

--/ But when the candle wax is burnt, it cannot be brought back into its original form, so it is involving a chemical change. [ In chemical changes, the object cannot be brought back into its original form ]