General Principles and Processes of Isolation of Elements - Result Question 8
####8. Extraction of gold and silver involves leaching with
(a) distillation
(b) zone refining
(c) displacement with
(d) liquation
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Solution:
- (c)
being more reactive than and , displaces them.
Soluble Sodium dicyanoargentate (I)
Soluble cyanide compound can be treated with