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NEET
Exam
NEET
Subject
Chemistry
Chapter
General Principles and Processes of Isolation of Metals

NEET · Chemistry · General Principles and Processes of Isolation of Metals

Which chemical equation represents the formation of metal compounds...

Which chemical equation represents the formation of metal compounds during the leaching process?

Options

  1. A4M(s) + 8CN–(aq) + 2H2O(aq) + O₂(g) → 4[M(CN)2]–(aq) + 4OH–(aq) (M= Ag or Au)
  2. B2M(s) + Zn(CN)4(aq) → 2[M(CN)2]2-(aq) + Zn(s)
  3. C4Ag(s) + 8CN–(aq) + 2H2O(aq) + O2(g) → 4[Ag(CN)2]–(aq) + 4OH–(aq)
  4. D2Au(s) + 4CN–(aq) + 2H2O(aq) + O₂(g) → 2[Au(CN)2]–(aq) + 4OH–(aq)

Correct answer

A. 4M(s) + 8CN–(aq) + 2H2O(aq) + O₂(g) → 4[M(CN)2]–(aq) + 4OH–(aq) (M= Ag or Au)

Step-by-step solution

This equation represents the formation of metal compounds during leaching.
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