A few changes are given below: a. Making almirah from wood b. Galvanisation of an iron pot C. Making an aeroplane from a paper d. Formation of acid rain from air pollutants e. Photosynthesis f. Breaking of vase Classify these changes into : I. Irreversible-physical change II. Chemical change III. Reversible-physical change
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A
a, f are irreversible physical changes, b, d, e are chemical changes and c is a reversible physical change.
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