JEE Main · 2021 · 27 Aug 2021 · Shift 1 · General Principles and Processes of Isolation of Metals

Which refining process is generally used in the purification of low melting metals?

(A)Zone refining
(B)Liquation✓ Correct
(C)Chromatographic method
(D)Electrolysis

Answer: (B)

Solution

Liquation refines a low-melting metal by heating the impure metal on a sloping hearth until the metal melts and runs off, leaving the higher-melting impurities behind. It suits metals such as tin and lead. The process used is liquation.

JEE Main · 2021 · 27 Aug 2021 · Shift 1 · Single correct option

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