Classify the changes involved in the following processes as physical or
chemical changes:
(i) Photosynthesis (ii) Dissolving sugar in water
(iii) Digestion of food (iv) Melting of wax
(v) Burning of coal (vi) Beating aluminium to make a foil
(vii) Formation of curd (viii) Melting of ice
(ix) Respiration (x) Shaping of glass by heat
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(1) chemical change
(2) physical change
(3) chemical change
(4) physical change
(5)chemical change
(6) physical change
(7) chemical change
(8) physical change
(9) chemical change
(10) physocal change
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