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NARAYNA-METTALURGY-Extraction of metals
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- Carbon cannot be used to reduce
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- Hydro metallurgy is used in the extraction of
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- Silver is displaced when zinc is added to aqueous sodium argento cyani...
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- A mixture of haematite, coke and limestone on heating in blast furnace...
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- The slag formed in the blast furnace during the extraction of iron fro...
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- The iron formed in blast furnace is calle d
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