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NEET2021Chemistry-Electrochemistry

NEET 2021 Chemistry Kohlrausch's Law MCQ Question

Type: MCQ-numerical-Medium-Class 12

The molar conductance of NaCl, HCl and CH₃COONa at infinite dilution are 126.45, 426.16 and 91.0 S cm² mol⁻¹ respectively. The molar conductance of CH₃COOH at infinite dilution is. Choose the right option for your answer.

A

201.28 S cm² mol⁻¹

B

390.71 S cm² mol⁻¹

C

698.28 S cm² mol⁻¹

D

540.48 S cm² mol⁻¹

Correct Answer

Option C

Detailed Explanation

Using Kohlrausch's law, the molar conductance of CH₃COOH can be calculated as the sum of the molar conductance of HCl and CH₃COONa minus NaCl.

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