Silver may be obtained by ....

Silver may be obtained by __________.

A

reduction of `Ag_(2)S` by (Zn+HCl)

B

melting `Ag_(2)S` with NaCl

C

`Ag_(2)S` treated with NaCN then by adding zinc powder

D

`Ag_(2)S` when treated with ZnS

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The correct Answer is:

C

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