\( \left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-} \)संकीर्ण आयन से रजत (चाँदी) प्राप्त करने के लि...

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\( \left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-} \)संकीर्ण आयन से रजत (चाँदी) प्राप्त करने के लिए ताँबे का उपयोग नहीं किया जाता है, बल्कि जस्ता का उपयोग किया जाता है। समझाइए।
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