List of top Chemistry Questions on Conductance asked in JEE Main

Given below are two statements:
Statement I: Mohr's salt is composed of only three types of ions—ferrous, ammonium, and sulphate.
Statement II: If the molar conductance at infinite dilution of ferrous, ammonium, and sulphate ions are $ x_1 $, $ x_2 $, and $ x_3 $ $ \text{S cm}^2 \, \text{mol}^{-1} $, respectively, then the molar conductance for Mohr's salt solution at infinite dilution would be given by $ x_1 + x_2 + 2x_3 $.

On which factor, electrical conductivity of electrolytic cell does not depend

Choose the correct representation of conductometric titration of benzoic acid vs sodium hydroxide

Following figure shows dependence of molar conductance of two electrolytes on concentration. Λ^o _m is the limiting molar conductivity. The number of incorrect statement(s) from the following is ________

(A) $\Lambda \text{o m}$ for electrolyte A is obtained by extrapolation.
(B) For electrolyte B, $\Lambda \text{m}$ vs $\sqrt c$ graph is a straight line with intercept equal to o $\Lambda \text{m}$
(C) At infinite dilution, the value of degree of dissociation approaches zero for electrolyte B.
(D) Λo m for any electrolyte A or B can be calculated using $\lambda0$ for individual ions.

The resistance of a conductivity cell containing $0.01$ M KCl solution at $298\ K$ is $1750\ Ω$. If the conductivity of $0.01$ M KCl solution at $298\ K$ is $0.152×10^{–3}$ S cm^–1, then the cell constant of the conductivity cell is ______ $×10^{–3}$ cm^–1.

Resistance of a conductivity cell (cell constant 129 m^–1) filled with 74.5 ppm solution of KCI is 100 Ω (labelled as solution 1). When the same cell is filled with KCl solution of 149 ppm, the resistance is 50 Ω (labelled as solution 2). The ratio of molar conductivity of solution 1 and solution 2 is $\frac{\Lambda_1}{\Lambda_2} = x \times 10^{-3}$. The value of x is _________. (Nearest integer)
(Given : molar mass of KCl is 74.5 g mol^–1).

The decreasing order of electrical conductivity of the following aqueous solutions is : 0.1 M Formic acid (A), 0.1 M Acetic acid (B) 0.1 M Benzoic acid (C)