$\begin {array} {1 1} (A)\;\text{Silver is extracted from its ores by the cyanide process} \\ (B)\;\text{In the electrolytic refining of silver, the anode is impure silver and cathode is pure silver} \\ (C)\;\text{India does not contain any ore of silver} \\ (D)\;\text{The anode mud in the electrolytic refining of silver includes copper and gold} \end {array}$
