Question

Match the ores given in Column I with their composition given in Column II.

Column I		Column II
A	Malachite	p	Sulphide ore
B	Azurite	q	Carbonate ore
C	Chalcopyrites	r	Oxide ore
D	Copper glance	s	Roasting

• A. A - (s) , B - (p) , C - (q) , D - (q,s)
• B. A - (p,q) , B - (q) , C - (p,q) , D - (s)
• C. A - (q) , B - (q) , C - (p,s) , D - (p,s)
• D. A - (s) , B - (r) , C - (s) , D - (p)

Answer 1

Answer: (C)

Malachite $-CuC{O}_3\cdot Cu(CO{)}_2$ (Carbonate ore)
Azurite $-2CuC{O}_3\cdot Cu(OH{)}_2$ (Carbonate ore)
Coper pyrites $-CuFe{S}_2$ (Sulphide ore so roasted)
Copper glance $-C{u}_{2}S$ (Sulphide ore so roasted)
Thus, $A\to q,B\to q,C\to p,s,D\to p,s$