Calamine is the ore of:

Question

Question

This question was previously asked in

DSSSB PGT Chemistry (Female) Official Paper (Held On: 06 Jul, 2018 Shift 1)

Answer 1

CONCEPT:

Calamine as an Ore

An ore is a naturally occurring solid material from which a metal or valuable mineral can be extracted profitably.
Calamine is a mineral that consists mainly of zinc carbonate (ZnCO₃) or zinc silicate (Zn₄Si₂O₇(OH)₂·H₂O).
It is one of the primary ores of zinc and is used in the extraction of zinc metal.

EXPLANATION:

Aluminum (Al) is extracted from ores like bauxite (Al₂O₃·2H₂O), not calamine.
Calcium (Ca) is obtained from minerals like limestone (CaCO₃), not calamine.
Iron (Fe) is extracted from ores like hematite (Fe₂O₃) and magnetite (Fe₃O₄), not calamine.
Zinc (Zn) is extracted from ores like calamine (ZnCO₃), making this the correct option.

Therefore, calamine is the ore of zinc (Zn).