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प्रश्न
Silica is a/an _______.
विकल्प
Acidic flux only
Gangue only
Basic flux only
Both gangue and acidic flux
MCQ
रिक्त स्थान भरें
उत्तर
Silica is a/an both gangue and acidic flux.
Explanation:
SiO2 (silica) is referred to as gangue when it is present in an ore as an earthy contaminant and as acidic flux when it is supplied to remove basic impurities like CaO, FeO, etc.
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