The difference(s) between roasting and calcination is(are) : \( \ma...

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The difference(s) between roasting and calcination is(are) :
\( \mathrm{P} \)
(A) roasting is highly endothermic while calcination is
W not.
(B) partial fusion occurs in calcination but not in roasting.
(C) calcination is performed in limited supply of air but roasting employs excess air.
(D) combustion reactions occur in roasting but not in calcination.
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