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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

roasting of metal complex

B

calcination followed by roasting

C

thermal decomposition of metal complex

D

displacement of metal by some other metal from the complex ion

Text Solution

Verified by Experts

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