Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Which metal is extracted using a hydrometallurgical process involving complexation?
Text Solution
Verified by ExpertsThe correct answer is:
B
4Au + 8CN – + 2H 2 O — → 4[Au(CN) 2 ] – (soluble complex) + 4OH –
2[Au(CN) 2 ] – + Zn — → 2Au + [Zn(CN) 4 ] 2–
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