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प्रश्न
Limestone is used as a flux in the extraction of ______.
विकल्प
iron
aluminium
zinc
copper
MCQ
रिक्त स्थान भरें
उत्तर
Limestone is used as a flux in the extraction of iron.
Explanation:
Limestone decomposes in a hot furnace to create calcium oxide and carbon dioxide, it is employed as a flux in the extraction of iron. Calcium oxide is generated and works as a flux, combining with silica to form fusible calcium silicate slag.
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