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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.

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.

Grade:12th pass

2 Answers

Harshit Singh
askIITians Faculty 5963 Points
2 years ago
Dear Student

Chemical changes are:
(a) Growth of a plant
(b) Rusting of iron
(c) Cooking of food
(d) Digestion of food
(e) Burning of a candle

Thanks
Shraddha Singh
273 Points
2 years ago
Dear Student,
 
The chemical changes are as follows :
1. Growth of a plant
2. Rusting of iron
3. Cooking of food
4. Digestion of food
5. Burning of candle (both physical and chemical change)
 
Hope it helps!
Thank you ✌️

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