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AP EAMCET201923 Apr 2019Morning ShiftChemistryChemical EquilibriumActual

The stepwise stability constants of a complex are given below. What is its overall reaction stability constant ( ( ₄ ) ) ? ( aligned & M+L M L ; K₁=1.0 10^4 & M L+L M L₂ ; K₂=1.0 10^3 & M L₂+L M L₃ ; K₃=1.0 10^3 & M L₃+L M L₄ ; K₄=1.0 10^2 aligned ) (Overall reaction : (M+4 L M L₄ ) )

Options

  1. A(1.0 10¹² )
  2. B(12.1 10^3 )
  3. C(1.0 10^6 )
  4. D(1.0 10^8 )

Correct answer

A. (1.0 10¹² )

Step-by-step solution

Given, ( gathered M+L M L ; K₁=1.0 10^4 M L+L M L₂ ; K₂=1.0 10^3 M L₂+L M L₃ ; K₃=1.0 10^3 M L₃+L M L₄ ; K₄=1.0 10^2 gathered ) Overall reaction, (M+4 L M L₄ ) The overall stability constant, ( aligned ₄ & =K₁ K₂ K₃ K₄ ₄ & =1.0 10^4 1.0 10^3 1 10^3 1 10^2 & =1 10¹² aligned )

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