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Molar ionic conductivities of divalent cation and anion are (57 ~S ~cm ^2 ~mol ⁻¹ ) and (73 ~S ~cm ^2 ~mol ⁻¹ ) respectively. The molar conductivity of solution of an electrolyte with the above cation and anion will be :

Options

  1. A(187 ~S ~cm ^2 ~mol ⁻¹ )
  2. B(260 ~S ~cm ^2 ~mol ⁻¹ )
  3. C(130 ~S ~cm ^2 ~mol ⁻¹ )
  4. D(65 ~S ~cm ^2 ~mol ⁻¹ )

Correct answer

C. (130 ~S ~cm ^2 ~mol ⁻¹ )

Step-by-step solution

aligned & _ C ⁺²=57 Scm ^2 ~mol ⁻¹ & _ A ⁺²=73 Scm ^2 ~mol ⁻¹ & _ Solution = _ C ⁺²+ _ A ⁻² & =57+73=130 aligned

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