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Question

Which of the following combination are correct?

A
Fluorspar, FeCO3
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B
Zinc blende, ZnO
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C
Magnesite, Oxide ore
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D
Cryolite, Halide ore
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Solution

The correct option is D Cryolite, Halide ore
Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2.
Zinc sulfide (ZnS) is a unique compound that forms two types of crystalline structures. These two polymorphs are wurtzite and zincblende.
Magnesite is a mineral with the chemical formula MgCO3 (magnesium carbonate).
Cryolite (Na3AlF6), sodium hexafluoroaluminate is a halide ore.

Hence, option D is correct.

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