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Given below are two statements: Statement I : The limiting molar conductivity of KCl (strong electrolyte) is higher compared to that of CH ₃ COOH (weak electrolyte). Statement II : Molar conductivity decreases with decrease in concentration of electrolyte. In the light of the above statements, choose the most appropriate answer from the options given below:

Options

  1. AStatement I is false but Statement II is true
  2. BBoth Statement I and Statement II are true
  3. CStatement I is true but Statement II is false
  4. DBoth Statement I and Statement II are false

Correct answer

D. Both Statement I and Statement II are false

Step-by-step solution

lon K + Cl - CH 3 COO - H + λ ∘ /   S   cm 2   mol - 1 73 . 5 76 . 3 40 . 9 349 . 6 λ ∘ M CH 3 COOH = λ ∘ M H + + λ ∘ M CH 3 COO − = 349.6 + 40.9 = 390.5 Scm 2 mol − 1 λ ∘ M ( KCl ) = λ ∘ M K + + λ ∘ M Cl − = 73.5 + 76.3 = 149.8 Scm 2 mol − 1 So, statement-I is false. For an electrolyte the dilution increases (or) decrease in concentration, the number of ions increases due to increase of degree of dis

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