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प्रश्न
What flux would you use to remove the following impurity?
CaO
अति संक्षिप्त उत्तर
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उत्तर
The impurity CaO (lime/quicklime) is basic in nature. To remove it, we use an acidic flux, such as SiO2 (silica).
\[\ce{CaO + SiO2 -> CuSiO3}\]
So, the flux used to remove CaO is SiO2 (acidic flux).
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