JEE Chemistry · Hard

Electrochemistry: JEE Advanced MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
JEE AdvancedHardQuestion 710015

Question

The degree of dissociation of an electrolyte can be determined from conductance by:
  1. A
    α = Λm/Λ°m
    Correct
  2. B
    α = Λ°m/Λm
  3. C
    α = Λm × c
  4. D
    α = 1/Λm

Correct answer

α = Λm/Λ°m

Explanation

For weak electrolytes, the degree of dissociation at concentration c: α = Λm/Λ°m. As dilution increases, α increases from near 0 towards 1.