Question

which of the following does not involve a chemical reaction?
1. Digestion of food in our body.
2.process of respiration.
3.burning of candle wax when heated.
4.melting of candle wax on heating.

this is a MCQ's

plz write down the answer.​

Answer 1

Answer:

3 ) melting of candle wax

Explanation:

i

Answer 2

Answer:

Melting of candle wax on heating is an example of physical change no chemical reaction is taking place only the change of state from solid to liquid state.

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