Class 12 Chemistry General Principles and Processes of Isolation of Elements Reduction to free Metal

Easy

In the metallurgy of zinc,the zinc dust obtained from roasting and reduction of zinc sulphide contains some $ZnO$. How is this removed?

A
Absorbance of ultraviolet light and re-emission of white light is employed
B
Shock cooling by contact with a shower of molten lead is done
C
$X$-ray method is used
D
Smelting is employed

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Reduction to free Metal

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