JEE Main 2021 — Electrochemistry Question with Solution
From: JEE Main 2021 (Online) 16th March Evening Shift
Question
A 5.0 m mol dm3 aqueous solution of KCl has a conductance of 0.55 mS when measured in a cell of cell constant 1.3 cm1. The molar conductivity of this solution is ___________ mSm2 mol1. (Round off to the Nearest Integer).
Enter your answer
Show full solutionCorrect answer: 14.3
Correct answer
14.3
Step-by-step explanation
Conductance =
Conductivity = 0.55 103 1.3 S cm1
Molar conductivity =
= 143 S cm2 mol1
= 14.3 mS m2 mol1
14 mS m2 mol1
Conductivity = 0.55 103 1.3 S cm1
Molar conductivity =
= 143 S cm2 mol1
= 14.3 mS m2 mol1
14 mS m2 mol1
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Electrochemistry chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, 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.