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What is the meaning of roasting and calcination​

Answer»

● ROASTING : IN THIS PROCESS SULPHUDE ORE IS HEATED IN PRESENCE OF AIR IN A FURNANCE AT A TEMP. BELOW M.P. OF METAL.EX. 2Zn+3 O2 -> 2ZnO +2 SO2 ●CALCINATION : IT IS A PROCESS OF HEATING CARBONATE ORE IN ABSENCE OF AIR OR LIMITED SUPPLY OF AIR.EX.CaCO3 -> CaO +CO2.MARK AS BRAINLIEST☺



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