Which of the Following Are Chemical Changes? - Science

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Which of the following are chemical changes?

(a) Growth of a plant

(b) Rusting of iron

(c) Mixing of iron fillings and sand

(d) Cooking of food

(e) Digestion of food

(f) Freezing of water

(g) Burning of candle

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Solution

The following changes are chemical changes:

(a) Growth of a plant

(b) Rusting of iron

(d) Cooking of food

(e) Digestion of food

(g) Burning of candle

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Chapter 2: Is Matter around us Pure - Exercises [Page 30]

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NCERT Science Class 9
Chapter 2 Is Matter around us Pure
Exercises | Q 11 | Page 30

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