Which of the following statements is incorrect with respect to metallic or electronic conductivity?
- AMetallic conductivity depends on the structure of the metal and its characteristics.
- BMetallic conductivity depends on the number of electrons in the valence shell of the metal atom.
- CThe electrical conductivity of a metal increases with an increase in temperature.
- DThere is no change in the structure of the metal during electrical conduction.
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Similar Questions
What is the molar conductivity of $0.02 \text{ M}$ $KI$ solution if its conductivity is $4.37 \times 10^{-4} \text{ }\Omega^{-1} \text{cm}^{-1}$?
DifficultMHT CET 2026
View SolutionAt $298 \text{ K}$, the specific conductance $(\kappa)$ of a $0.0020 \text{ M}$ $NaCl$ solution is $2.50 \times 10^{-4} \text{ S cm}^{-1}$. Calculate the molar conductivity $(\Lambda_m)$ of the solution in $\text{S cm}^2 \text{mol}^{-1}$.
DifficultMHT CET 2026
View SolutionThe molar conductivity of $KCl$ solutions at different concentrations at $298 \, K$ are given below:
$c^{1/2} / (mol \, L^{-1})^{1/2}$ $\Lambda_m / S \, cm^2 \, mol^{-1}$ $0.000198$ $148.61$ $0.000309$ $148.29$ $0.000521$ $147.81$ $0.000989$ $147.09$
Show that a plot between $\Lambda_m$ and $c^{1/2}$ is a straight line. Determine the values of $\Lambda_m^o$ and $A$ for $KCl$.
| $c^{1/2} / (mol \, L^{-1})^{1/2}$ | $\Lambda_m / S \, cm^2 \, mol^{-1}$ |
| $0.000198$ | $148.61$ |
| $0.000309$ | $148.29$ |
| $0.000521$ | $147.81$ |
| $0.000989$ | $147.09$ |
Show that a plot between $\Lambda_m$ and $c^{1/2}$ is a straight line. Determine the values of $\Lambda_m^o$ and $A$ for $KCl$.
Medium
View SolutionThe $INCORRECT$ statement about the conductivity of electrolytic (ionic) solution is
MediumKVPY 2021
View SolutionFor a strong electrolyte,the molar conductivity is given by $\wedge _m = \wedge _m^o - 10 \sqrt{C}$. Calculate $\wedge _m$ at $0.01 \ M$ if its value at $0.16 \ M$ is $200 \ S \ cm^2 \ mol^{-1}$.
Medium
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