Question

which of the following is a chemical change(I) melting of wax (ii) boiling of water (iii) melting of ice (iv) burning of coal​

Answer 1

Answer:

Growth of a plant, rusting of iron, cooking of food, digestion of food, and burning of candle are chemical changes because here the chemical composition of the substance changes.

Explanation:

I hope this is helpfully answer

Answer 2

Answer:

iv]burning of a coal is the right ✅ ans

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