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JEE Main · 2021 · 26 Feb 2021 · Shift 1 · General Principles and Processes of Isolation of Metals

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Match list - I with List - II.
List - I (Ore)
(a) Kernite
(b) Cassiterite
(c) Calamine
(d) Cryolite
List - II (Element Present)
(i) Tin
(ii) Boron
(iii) Fluorine
(iv) Zinc
Choose the most appropriate answer from the options given below :

Answer: A → II, B → I, C → IV, D → III

Solution

Kernite is , the borax-like mineral worked for boron. Cassiterite is , the chief ore of tin. Calamine is , a carbonate ore of zinc. Cryolite is , and the element it carries beyond sodium and aluminium is fluorine.
Kernite therefore goes with boron, cassiterite with tin, calamine with zinc and cryolite with fluorine.

JEE Main · 2021 · 26 Feb 2021 · Shift 1 · Match the columns

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