JEE Main · 2022 · 26 Jul 2022 · Shift 1 · General Principles and Processes of Isolation of Metals

Refining using liquation method is the most suitable for metals with:

(A)Low melting point✓ Correct
(B)High boiling point
(C)High electrical conductivity
(D)Less tendency to be soluble in melts than impurities

Answer: (A)

Solution

Liquation is a refining method used for metals that have a low melting point compared to their impurities. The impure metal is heated on a sloping surface; the metal melts and flows away, leaving behind the higher-melting impurities. This method is suitable for metals like tin, lead, and bismuth.

Answer: (A) Low melting point.

JEE Main · 2022 · 26 Jul 2022 · Shift 1 · Single correct option

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