JEE Main · 2023 · 29 Jan 2023 · Shift 2 · General Principles and Processes of Isolation of Metals

The major component of which of the following ore is sulphide based mineral?

(A)Calamine
(B)Siderite
(C)Sphalerite✓ Correct
(D)Malachite

Answer: (C)

Solution

Calamine is zinc carbonate, siderite is iron(II) carbonate and malachite is a basic copper carbonate, so all three of these are carbonate minerals. Sphalerite is zinc sulphide,

ZnS

, which is the only sulphide-based mineral among the ores listed.

JEE Main · 2023 · 29 Jan 2023 · Shift 2 · Single correct option

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