Umakant biswal
Last Activity: 8 Years ago
roasting is the process of converting an ores into oxide by strongly heating it in the presence of excess of air . .
for example sulphides ores are converted into their respective oxide by heating in the presence of air .
below are the reaction
Zn + 3 o2 = 2Zno + 2So2
and sometimes photochemical reaction in the lower atmosphere result in roasting by forming photochemical smog .
HOPE IT CLEARS
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