A) To remove volatile substances
B) Oxidation
C) Reduction
D) Slag formation
Correct Answer: A
Solution :
To remove volatile substances. \[{{S}_{8}}+8{{O}_{2}}\to 8\,S{{O}_{2}}\uparrow \] ; \[{{P}_{4}}+5{{O}_{2}}\to {{P}_{4}}{{O}_{10}}\uparrow \] \[4\,As+3{{O}_{2}}\to 2\,A{{s}_{2}}{{O}_{3}}\uparrow \]
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