Question

classify the following substances according to the given property :
a.property :lustre.
substances:wood,fresh piece of iron,aluminium foil,silk steel
b.property:hardness
substances:brick,cotton,wool,coal,diamond
c.property :solubility in water
substances:sand,chalk powder,sugar,salt
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Answer 1

The substances which have lustre

property are fresh piece of iron,aluminium foil,silk,steel

The substances which have hardness property are brick,diamond

The substances which can be soluble in water are sugar,salt

Answer 2

Answer:

Lusterous substances-fresh piece of iron,alluminium foil, steel

Hard substances-brick, diamond

Solubility in water-chalk powder, sugar, salt