Consider two chemical reactions (A) and (B) that take place during metallurgical process : (A) $\mathrm{ZnCO}_{3(\mathrm{~s})} \xrightarrow{\Delta} \mathrm{ZnO}_{(\mathrm{s})}+\mathrm{CO}_{2(\mathrm{~g})}$
(B) $2 \mathrm{ZnS}_{(\mathrm{s})}+3 \mathrm{O}_{2(\mathrm{~g})} \xrightarrow{\Delta} 2 \mathrm{ZnO}_{(\mathrm{s})}+2 \mathrm{SO}_{2(\mathrm{~g})}$
The correct option of names given to them respectively is :
Select the correct option:
A
(A) is calcination and (B) is roasting
B
Both (A) and (B) are producing same products o both are roasting
C
Both (A) and (B) are producing same product so both are calcination
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