Chemistry - Metallurgy Question with Solution | TestHub

(A) Represents extraction of Zn in its molten state

(B) Unable to represent the phase of extracted zinc.

(C) Represents that zinc will be extracted in the form of vapours

$\mathrm{Zn}(\mathrm{g})+\frac{1}{2}{\mathrm{O}}_2(\mathrm{g})⟶\mathrm{ZnO}(\mathrm{g})$

$\mathrm{ZnO}(\mathrm{g})+\mathrm{C}(\mathrm{s})\underset{\text{ B.P.of }\mathrm{Zn}}{\overset{\text{ above }}{\to }}\mathrm{Zn}(\mathrm{g})+\mathrm{CO}\uparrow$

(D) Represents wrong ellingham diagram for formation of ZnO , as
$\mathrm{Zn}(\mathrm{s})+\frac{1}{2}{\mathrm{O}}_2(\mathrm{g})\underset{400^{\circ }\mathrm{C}}{\overset{\text{ below }}{\to }}\mathrm{ZnO}(\mathrm{s})\Rightarrow$ decreases in entropy in the forward direction At $420^{\circ }\mathrm{C}$ $\mathrm{Zn}(l)+\frac{1}{2}{\mathrm{O}}_2(\mathrm{g})⟶\mathrm{ZnO}(\mathrm{g})\Rightarrow$ decreases in entropy in forward direction