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`.

Assertion : Silver and gold are extracted from their ores by the process of leaching with dilute NaCN. Reason : Impurities associated with these ores dissolve in NaCN.

Leaching of Ag_(2)S is carried out by heating it with a dilute solution of:

Silver ore dissolve in the dilute solution of NaCN in the presence of air to form:

Which of the following metals is obtained by leaching its ore with dilute cyanide solution ?

The impurities associated with the ore after mining are collectively called