Question

Match the Column I with Column II and choose the correct option from the codes given below.

Column I		Column II
A	Calamine	1	Sulphide of Cu and Fe
B	Copper matte	2	Leaching
C	Silver	3	Calcination
D	$Cu_2 S$	4	Roasting

• A. A - (4), B - (3), C - (1) , D - (2)
• B. A - (1), B - (2), C - (3) , D - (4)
• C. A - (3), B - (1), C - (2) , D - (4)
• D. A - (3), B - (1), C - (4) , D - (2)

Answer 1

Answer: (C)

$A \rightarrow 3, B \rightarrow 1, C \rightarrow 2, D \rightarrow 4$