Q. 14

Match the items of Column I with the items of Column II :

Answer :

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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A chemical change may involve –

NCERT - Exemplar Science