Question

11.
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
Burning of a candle.​

Answer 1

Answer:

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Explanation:

Chemical changes:

Growth of a plant

Cooking of food

Digestion of food

Rusting of Iron

Burning of candle (IT IS BOTH CHEMICAL AND PHYSICAL CHANGE)

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