Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
$\lambda_{\mathrm{ClCH}_2 \mathrm{COONa}}=224 \mathrm{ohm}^{-1} \mathrm{~cm}^2 \mathrm{gmeq}^{-1}$
$\lambda_{\mathrm{NaCl}}=38.2 \mathrm{ohm}^{-1} \mathrm{~cm}^2 \mathrm{gmeq}^{-1}$
$\lambda_{H C l}=2030 \mathrm{hm}^{-1} \mathrm{~cm}^2 \mathrm{gmeq}^{-1}$
What is the value of $\lambda_{\mathrm{ClCH}_2 \mathrm{COOH}}$
ChemistryElectrochemistryJEE Main
Options:
  • A $288.5 \mathrm{ohm}^{-1} \mathrm{~cm}^2 \mathrm{gmeq}^{-1}$
  • B $289.5 \mathrm{ohm}^{-1} \mathrm{~cm}^2 \mathrm{gmeq}^{-1}$
  • C $388.5 \mathrm{ohm}^{-1} \mathrm{~cm}^2 \mathrm{gmeq}^{-1}$
  • D $59.5 \mathrm{ohm}^{-1} \mathrm{~cm}^2 \mathrm{gmeq}^{-1}$
Solution:
2317 Upvotes Verified Answer
The correct answer is: $388.5 \mathrm{ohm}^{-1} \mathrm{~cm}^2 \mathrm{gmeq}^{-1}$
$\mathrm{ClCH}_2 \mathrm{COONa}^{\mathrm{HCl}} \rightarrow \mathrm{ClCH}_2 \mathrm{COOH}+\mathrm{NaCl}$
$\lambda_{\mathrm{ClCH}_2 \mathrm{COONa}}+\lambda_{\mathrm{HCl}}=\lambda_{\mathrm{ClCH}_2 \mathrm{COOH}}+\lambda_{\mathrm{NaCl}}$
$224+203=\lambda_{\mathrm{ClCH}_2 \mathrm{COOH}}+38.2$
$\lambda_{\mathrm{ClCH}_2 \mathrm{COOH}}=427-38.2=388.8 \mathrm{ohm}^{-1} \mathrm{~cm}^2 \mathrm{gmeq}^{-1}$

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.