Consider two chemical reactions (A) and (B) that
take place during metallurgical process:
(A) ${\mathrm{ZnCO}}_{3\left(\mathrm{s}\right)}\stackrel{\mathrm{\Delta }}{⟶}{\mathrm{ZnO}}_{\left(\mathrm{s}\right)}+{\mathrm{CO}}_{2\left(\mathrm{g}\right)}$
(B) $2{\mathrm{ZnS}}_{\left(\mathrm{s}\right)}+3{\mathrm{O}}_{2\left(\mathrm{g}\right)}\stackrel{\mathrm{\Delta }}{⟶}2{\mathrm{ZnO}}_{\left(\mathrm{s}\right)}+2{\mathrm{SO}}_{2\left(\mathrm{g}\right)}$
The correct option of names given to them respectively is: