Question

Which of the following are physical changes?
i.Melting of iron metal
ii.rusting of iron
iii.bending of an iron rod
iv.drawing a wire of iron metal

Answer 1

Answer:

Option (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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