Which of the following statement is correct? (1) Leaching of gold with \( \overline{\mathrm{C}} ...

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Which of the following statement is correct?
(1) Leaching of gold with \( \overline{\mathrm{C}} \mathrm{N} \) is an oxidation
\( \mathrm{P} \)
reaction
W
(2) Argentite is oxide ore of silver
(3) In the precipitation of gold from the soluble complex, zinc acts as reducing agent
(4) Both (1) and (3)
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