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Explain the physicochemical principles rosting in ore

Explain the physicochemical principles rosting in ore

Grade:12th pass

1 Answers

Umakant biswal
5349 Points
7 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 
in case of further doubt , let me know ..

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