Assertion : Gold and silver are extracted from their native ores by leaching.
Reason : Both silver and gold particles dissolve in dilute solution of sodium cyanide in presence of oxygen.

Native silver metel froms a water solube, complex with a dilute aqueous solution of NaCN in the presence of

Native silver metel froms a water solube, complesx with a dilute aqueous wsolution of NaCN in the presence of

Assertion: Ag and Au are extracted by leaching the ores with a dilute solution of NaCN . Reason: Impurities associated with these ores dissolve in NaCN .

Extraction of silver from Ag_(2)S by the use of sodium cyanide is example of

The atoms of gold are different from the atoms of silver. True or false? Give reason.

Statement-1:In cyanide process for the extraction of gold and silver from their native ores, the cyanide solution acts as a reducing agent to reduce the gold and silver compounds present in the ores, into the metallic states. Statement-2:In the extraction of gold and silver the cyanide solution acts as complexing reagent in the presence of air and form their respective soluble complexes.

Assertion : Silver can displace copper from CuSO_4 solution. Reason : Silver is placed below copper in the electrochemical series.

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

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