Question

Match the following 

List I (Method)	List II (Metal refined)
A) Zone refining	I) Sn
B) Liquation	II) In
C) Vapour phase refining	III) Zn
D) Distillation	IV) Zr
	V) Al

• A. A-IV, B-I, C-III, D-V
• B. A-II, B-I, C-IV, D-III
• C. A-II, B-V, C-III, D-I
• D. A-I, B-III, C-IV, D-II

Hint:

Always remember which refining technique is best suited for which metal based on properties like melting point and volatility.

Answer 1

The Correct Option is B

Zone refining: This method is used for the purification of metals like indium (In) and gallium where impurities are swept by a molten zone. So, A → II. Liquation: In this method, a low melting metal like tin (Sn) is separated from higher melting impurities. So, B → I. Vapour phase refining: This technique refines metals like zirconium (Zr), using a volatile compound. So, C → IV. Distillation: Metals like zinc (Zn) with low boiling points are purified by distillation. So, D → III. Hence, the correct matching is: A → II, B → I, C → IV, D → III