These are the extraction processes of silver except : (Manipal 2010...

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These are the extraction processes of silver except :
(Manipal 2010)
(a) as a side product in electrolytic refining of copper
\( \mathrm{P} \)
(b) parke's process in which \( \mathrm{Zn} \) is used to extract silver by solvent extraction from molten lead
(c) by reaction of silver sulphide with \( \mathrm{KCN} \) and then reaction of soluble complex with \( \mathrm{Zn} \)
W
(d) by heating \( \mathrm{Na}\left[\mathrm{Ag}(\mathrm{CN})_{2}\right] \)
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