General Principles and Processes of Isolation of Elements - Result Question 9
####9. Match items of Column I with the items of Column II and asign the correct code : [2016]
Code :
\begin{tabular}{lllll} & (A) & (B) & (C) & (D) \
(a) & (iv) & (ii) & (iii) & (i) \
(b) & (ii) & (iii) & (i) & (v) \
(c) & (i) & (ii) & (iii) & (iv) \
(d) & (iii) & (iv) & (v) & (i) \end{tabular}
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Solution:
- (a) Highly electropositive metals like
- zone refining method is used for obtaining metals of high purity e.g. Ge.
- Froth flotation process is suitable for sulphide ores.
- Cyanide process is used for the extraction of gold.
