JEE Main 2023ChemistryElectrochemistryHardNumerical

JEE Main 2023Electrochemistry Question with Solution

JEE Main 2023 (29 Jan Shift 1)

Question

Following figure shows dependence of molar conductance of two electrolytes on concentration. Λm0 is the limiting molar conductivity.

 

The number of Incorrect statement(s) from the following is _____

(A) Λm0 for electrolyte A is obtained by extrapolation
(B) For electrolyte B,   Λm Vs c  graph is a straight line with intercept equal to Λm0
(C) At infinite dilution, the value of degree of dissociation approach zero for electrolyte B.
(D) Λm for any electrolyte A or B can be calculated using λ° for individual ions.

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Show full solutionCorrect answer: 2
Correct answer
2

Step-by-step explanation


 

Following are the correct versions of the two incorrect statements:
(A) Λm0 for electrolyte A is cannot be obtained by extrapolation as the curve for A is diverging away from the y-axis

(C) At infinite dilution, value of degree of dissociation approaches one for electrolyte B

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About this question

This is a previous-year question from JEE Main 2023, covering the Electrochemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.