Question

Define the following :-

A) Roasting
B) Calcination

Answer 1

Explanation:

Roasting is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities. eg: carbon, sulphur etc removed as their gaseous oxides.

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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Answer 2

❤ ɾσαรƭเɳɠ - ƭɦε ρɾσcεรร ɓყ ωɦเcɦ ƭɦε รµℓρɦเ∂ε σɾεร αɾε cσɳѵεɾƭε∂ เɳƭσ σאเ∂εร ɓყ ɦεαƭเɳɠ รƭɾσɳɠℓყ เɳ ƭɦε ρɾεรεɳcε σƒ εאcεรร σƒ αเɾ ❤

❤ cαℓcเɳαƭเσɳ - ƭɦε ρɾσcεรร ɓყ ωɦเcɦ ƭɦε cαɾɓσɳαƭε σɾεร αɾε cσɳѵεɾƭε∂ เɳƭσ σאเ∂εร ɓყ ɦεαƭเɳɠ เɳ ƭɦε ρɾεรεɳcε σƒ ℓเɱเƭε∂ αเɾ ❤

ɦσρε เƭ ɦεℓρร :)

ƒσℓℓσω ɱε ❤❤