Question

2. Which of the following are chemical changes?
(a) Growth of a plant
(b)Rusting of iron
(c) Mixing of iron filings and sand
(d) Cooking of food
(e) Digestion of food
(f) Freezing of water
(8) Burning of a candle
(h) Melting of candle.​

Answer 1

Answer:

1)melting of a candle

2( cooking of food

3) melting of candle

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Answer 2

Answer:

rusting of iron

cooking of food

digestion of food

Burning of a candle

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