Question

Which of the following is a physical change ?



Ripening of mango
Melting of ice
Respiration
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Answer 1

Answer:

(i) Melting of iron metal, (iii) Bending of an iron rod and (iv) Drawing a wire of iron metal are physical changes, because in three processes, iron changes its form,not the chemical composition. In rusting of iron, its chemical composition is changed.

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Answer 2

Answer:

respiration is the physical change