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JEE Advanced2011ChemistryChemical EquilibriumActual

The equilibrium 2 Cu ^ I Cu ^0+ Cu ^ II in aqueous medium at 25^ C shifts towards the left in the presence of

Options

  1. ANO ₃⁻
  2. BCl ⁻
  3. CSCN ⁻
  4. DCN ⁻

Correct answer

B. Cl ⁻

Step-by-step solution

Cl ⁻, CN ⁻ and SCN ⁻ froms precipitate with Cu (I), remove Cu (I) ion from equilibrium and reaction shift in direction shift in backward direction according to Le-Chatelier's principle.

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