Question

Match the following:

Column-I	Column-II
(A) Zone refining	(P) pig iron
(B) Electrolysis	(Q) Al
(C) Reverberatory furnace	(R) Si
(D) Blast furnace	(S) Cu

• A. A-R, B-Q, C-S, D-P
• B. A-Q, B-P, C-S, D-R
• C. A-P, B-S, C-Q, D-R
• D. A-S, B-P, C-R, D-Q

Answer 1

The Correct Option is A

To solve this question, we need to understand the purpose and use of each method mentioned in Column-I, and with which material or element they are typically associated, as given in Column-II. 

1. Zone Refining (A): This is a method used for refining and purifying metals with high melting points and is often associated with semiconductors like Silicon (Si). Therefore, Zone refining corresponds to Si (R).
2. Electrolysis (B): Electrolysis is a widely used process in industries for obtaining metals from their ores. It is specifically used for the extraction of metals like Aluminum (Al) from its bauxite ore. Therefore, Electrolysis corresponds to Al (Q).
3. Reverberatory Furnace (C): This type of furnace is commonly used for smelting copper and other metals. The process involves heating the ore and reducing agents in separate chambers. Thus, Reverberatory furnace corresponds to Cu (S).
4. Blast Furnace (D): Blast furnaces are typically employed for the extraction and production of pig iron from iron ore. Thus, Blast furnace corresponds to pig iron (P).

Based on the above analysis, the correct matching between Column-I and Column-II is: A-R, B-Q, C-S, D-P.

Column-I	Column-II
Zone refining	Si (R)
Electrolysis	Al (Q)
Reverberatory furnace	Cu (S)
Blast furnace	pig iron (P)

Thus, the correct option is A-R, B-Q, C-S, D-P.