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Given below are two statements; one is labelled as Assertion (A) and the other is labelled as Reason(R). Assertion (A) : Vant Hoff factor (i) depend on concentration in case of incomplete dissociation. Reason (R) : For incomplete dissociation of electrolyte, value of vant Hoff factor(i) increase with decrease in concentration. In the light of the above statements, choose the most appropriate answer from the options g

Options

  1. ABoth (A) and (R) are correct but (R) is not the correct explanation of (A).
  2. B(A) is correct but (R) is not correct.
  3. C(A) is not correct but (R) is correct.
  4. DBoth (A) and (R) are correct and (R) is the correct explanation of (A).

Correct answer

A. Both (A) and (R) are correct but (R) is not the correct explanation of (A).

Step-by-step solution

- Assertion (A): "Vant Hoff factor (i) depends on concentration in case of incomplete dissociation." This is correct. The Van't Hoff factor ( ^i ) reflects the degree of dissociation of an electrolyte, and it can vary with concentration due to incomplete dissociation. - Reason (R): "For incomplete dissociation of electrolyte, the value of Van't Hoff factor (i) increases with a decrease in concentration." This is also correct. As the concentration decreases, the electrolyte has more tendency to dissociate completely

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