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NEET2008ChemistryChemical EquilibriumActual

If the concentration of OH ⁻ ions in the reaction Fe ( OH )₃(s) Fe ³⁺(a q)+3 OH (a q) is decreased by 1 4 times, then equilibrium concentration of Fe ³⁺ will increase by

Options

  1. A8 times
  2. B16 times
  3. C64 times
  4. D4 times

Correct answer

C. 64 times

Step-by-step solution

Key Idea : The concentration of solids taken to be unity. aligned & Fe ( OH )₃(s) Fe ³⁺(a q)+3 OH ⁻(a q) & K= [ Fe ³⁺ ] [ OH ⁻ ]^3 aligned Hence, if OH ⁻ ion concentration is decreased by 1 4 times, then equilibrium concentration of Fe ³⁺ will increase by 64 times.

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