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JEE Main 2024Electrochemistry Question with Solution

From: JEE Main 2024 (Online) 6th April Morning Shift

Question

A conductivity cell with two electrodes (dark side) are half filled with infinitely dilute aqueous solution of a weak electrolyte. If volume is doubled by adding more water at constant temperature, the molar conductivity of the cell will -

JEE Main 2024 (Online) 6th April Morning Shift Chemistry - Electrochemistry Question 23 English

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Correct answer
Dremain same or can not be measured accurately

Step-by-step explanation

The molar conductivity, denoted as , is calculated using the formula:

When the volume of the solution is doubled by adding more water at a constant temperature, the conductivity, , will be reduced to half, while the molarity, , will also be halved.

Therefore, the molar conductivity will either remain the same or cannot be measured with sharp accuracy.

For an infinitely dilute solution, the molar conductivity is approximately equal to the molar conductivity at infinite dilution , which is a constant.

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About this question

This is a previous-year question from JEE Main 2024, 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.