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26/12/2020 3:13 pm
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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
(g) Burning of a candle
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26/12/2020 3:14 pm
(a) Growth of a plant,
(b) rusting of iron,
(d) cooking of food
(e) digestion of food and
(g) burning of a candle, are chemical changes.