Difference between calcination and roasting

1.	Difference between calcination and roasting
Answer» Calcination is in limited air supply but roasting in excess air supply Calcination is done in absence of oxygen.... But roasting is done in presence of oxygen(air).... Calcination :- limit air heating !! Riasting :- heating by excess air !! Calcination :- carbinate into oxide !! Roasting :- sulphide into oxide

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