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Which of the following is not an iron ore?

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in Food Packaging Technology by (63.0k points)
Which of the following is not an iron ore?

(a) Hematite

(b) Magnetite

(c) Cryolite

(d) Limonite

The question was posed to me in an international level competition.

This interesting question is from Manufacture of Tinplate in division Metal Packaging Materials of Food Packaging Technology

1 Answer

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Best answer
Correct choice is (c) Cryolite

The explanation: Cryolite (Na3AlF6, sodium hexafluoroaluminate) is an aluminum ore. Hematite (Fe2O3), Siderite (FeCO3), Magnetite (Fe3O4) and Limonite (FeO•nH2O) are iron ores.

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