Question

Q. Extraction of zinc from zinc blende is achieved by
A electrolytic reduction
B roasting followed by reduction with carbon
c roasting followed by reduction with anothermetal
D roasting followed by self reduction

Answer 1

Solution:
Zinc blende contain \(\mathrm{ZnS}\) which is first roasted partially and then subjected to reduction with carbon
\(\mathrm{ZnS}+\mathrm{O}_{2} \rightarrow \mathrm{ZnO}+\mathrm{SO}_{2}\) Roasting
\(\mathrm{ZnO}+C \stackrel{\Delta}{\rightarrow} \mathrm{Zn}+C O \uparrow\) Carbonreduction

Answer 2

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