Define roasting and calcination.
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SaRiNa:
Roasting is a pyrochemical process in which the ore is heated in the presence of oxygen or air is below its melting point. ... roastingis done in reverberatory furnace. Ex:-2ZnS+3O2 ----> 2ZnO+SO2. Calcinationis also a pyrochemical process in which ore is heated in the absence of air.the is decomposed in this process.
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Answered by
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Heyaa folk,
The cooking function of something in oven or on pan, is called as roasting.
Calcination reactions equal to zero.
CaO + CO2 ➞ CaCO3.
Hope it helps u :)
- no4 ✯ Brainly Star ✯
The cooking function of something in oven or on pan, is called as roasting.
Calcination reactions equal to zero.
CaO + CO2 ➞ CaCO3.
Hope it helps u :)
- no4 ✯ Brainly Star ✯
Answered by
3
Roasting- Process of heating the concentrated ore in the presence of excess air to a high temperature before it is reduced to metal.
Ex- 2ZnS + 3O2 - 2ZnO + 2SO2
Calcination- Process of heating the ore in a limited supply of air or in absence of air at a temperature just below its melting point or not sufficient to melt the ore.
Ex- ZnCO3 - ZnO + CO2
Ex- 2ZnS + 3O2 - 2ZnO + 2SO2
Calcination- Process of heating the ore in a limited supply of air or in absence of air at a temperature just below its melting point or not sufficient to melt the ore.
Ex- ZnCO3 - ZnO + CO2
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