1.

Calcination is the process in which:

A. ore is heated above its melting point to expel \[{{H}_{2}}O\] or \[C{{O}_{2}}\] or \[S{{O}_{2}}\]
B. ore is heated below its melting point to expel volatile impurities
C. ore is heated above its melting point to remove S, As and Sb as \[S{{O}_{2}},\,\,A{{s}_{2}}{{O}_{3}}\] and \[S{{b}_{2}}{{O}_{3}}\] respectively
D. ore is heated below its melting point to expel \[{{H}_{2}}O\] or \[C{{O}_{2}}\]
Answer» E.


Discussion

No Comment Found