Main function of roasting is – InterviewSolution

1.	Main function of roasting is
Answer» to remove volatile SUBSTANCES oxidation reduction slag formation Solution :To remove moisture and non-metallic impurities like S, P and As are oxidised and are removed as volatile substances. `S_(8)+8O_(2) to 8SO_(2) uarr : P_(4)+5O_(2) rarr P_(4)O_(10) uarr` `4As+3O_(2) to 2As_(2)O_(3) uarr`

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