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Difference btw calcination and roasting

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Difference btw calcination and roasting

Posted by Anushka ???? 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Stranger?♋ Things 5 years, 7 months ago

Calcination is the process of heating the ore below its melting point in absence of air to remove volatile impurities like arsenic etc. Roasting is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities. ( Kaha rhti ho pura din??)

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CBSE > Class 10 > Science