Question

Which of the following are chemical changes?
(a) growth of 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​

Answer 1

Answer:

a) ,e),

Explanation:

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Answer 2

Answer:

Cooking of food is chemical change