Calcination is the process in which :
(a) ore is heated above its melting point to expel H₂O or CO₂ or SO₂
(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 SO₂, AS₂O₃ and Sb₂O₃ respectively
(d) ore is heated below its melting point to expel H₂O or CO₂
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b) ore is heated below its melting point to expel volatile impurities
guess this is the right answer
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