JEE Main · 2020 · 06 Sep 2020 · Shift 2 · General Principles and Processes of Isolation of Metals

The element that can be refined by distillation is:

(A)nickel
(B)zinc✓ Correct
(C)tin
(D)gallium

Answer: (B)

Solution

Refining by distillation suits a metal that boils low enough to be vaporised and recondensed away from its impurities. Of the metals listed, zinc, boiling near

90 7^{\circ} C

like mercury and cadmium, is purified this way, whereas nickel goes through the Mond carbonyl process, tin through liquation and gallium through zone refining. So it is zinc that is refined by distillation.

JEE Main · 2020 · 06 Sep 2020 · Shift 2 · Single correct option

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