classify following changes as a physical and chemical change. freezing of wax, rusting of iron, burning of magnesium, beating copper wire, ripening of fruits
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1. Physical change
2. Chemical change
3. Chemical change
4. Physical change
5. Chemical change
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(a) Photosynthesis → Chemical change
(b) Dissolving sugar in water → Physical change
(c) Burning of coal → Chemical change
(d) Melting of wax → Physical change
(e) Beating aluminium to make aluminium foil → Physical change
(f) Digestion of food → Chemical change
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