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Standard XII
Chemistry
Concentration of Ore
Extraction of...
Question
Extraction of gold and silver involves leaching the metal wish
C
N
−
ion the metal in recovered by
___
A
Displacement of metal by some other metal from the complex ion
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B
Roasting of metal complex.
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C
Calcination followed by roasting
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D
Thermal decomposition of metal complex
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Solution
The correct option is
A
Displacement of metal by some other metal from the complex ion
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