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Extraction of gold and silver involves l...

Extraction of gold and silver involves leaching the metal with `CN^(-)` ion. The metal is recovered by :

A

displacemetn of metal by some other metal from the complex ion

B

roasting of metal complex

C

calcination followed by roasting

D

thermal decomposition of metal complex.

Text Solution

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The correct Answer is:
A
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Extraction of gold and silver involves leaching with CN^(-) ion.silver is later recovered by: