Science, asked by prre, 11 months ago

SHYERU HELP ME roasting and calcination

Answers

Answered by ranishubhashni

Answer:

Roasting is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities. ... Calcination is the process of heating the ore below its melting point an absence of air to remove volatile impurities like arsenic etc.

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Answered by sanidhya973

Answer:

roasting refers to heating an object in presence or excess of oxygen where as calcination is heating of object in in absence or limited amount of oxygen

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