a) Sugarcane’s juice is crystallised to form large crystals of sugar candy.
b) Process of depositing a layer of zinc on iron is called Galvanisation.
c) Souring of milk is a chemical change. It changes its odour and taste.
d) Carbon dioxide form calcium carbonate [CaCO3] with lime water [Ca(OH)2] and turns it milky.
e) During rusting, iron reacts with moist oxygen to form iron oxide, which is called rust.
f) Dissolving common salt in water is a physical change.
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