Question

Match column A with column B and select the correct option:

	Column A (Ore)		Column B (Nature of ore)
(a)	Copper glance	(i)	Sulphate ore
(b)	Calamine	(ii)	Halide ore
(c)	Rock salt	(iii)	Sulphide ore
(d)	Epsom salt	(iv)	Carbonate ore

• A. a(i), b(ii), c(iii), d(iv)
• B. a(iv), b(ii), c(iii), d(i)
• C. a(iii), b(iv), c(ii), d(i)
• D. a(iv), b(i), c(ii), d(iii)

Answer 1

Answer: (C)

a(iii), b(iv), c(ii), d(i)

Copper glance is a sulphide ore. It is $C{u}_{2}S$.
Clamine is carbonate ore. It is zinc carbonate $ZnC{O}_3$.
Rock salt is halide ore. It is NaCl (sodium chloride).
Epsom salt is sulphate ore. It is magnesiumsulphate $MgS{O}_4\cdot 7H_{2}O$