Easy
Parke's process is used to extract
- ASilver using $NaCN$
- BCopper using $CuFeS_2$
- CSilver from argentiferous lead
- DSilver by forming amalgam
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View SolutionAssertion : Zinc can be used while copper cannot be used in the recovery of $Ag$ from the complex $[Ag(CN)_2]^-$.
Reason : Zinc is a more powerful reducing agent than copper.
Reason : Zinc is a more powerful reducing agent than copper.
MediumAIIMS 2017
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