Chemistry · 2017
NEET 2017 · 7 May · Code A · Q90
Extraction of gold and silver involves leaching with CN^- ion. Silver is later recovered by:
Extraction of gold and silver involves leaching with $\displaystyle \mathrm{CN}^{-}$ion. Silver is later recovered by :
Official answer
From NTA’s final answer key for this paper.
(4)
displacement with Zn
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