The number of correct statements from the fol | vedclass

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(B) Conductivity $(\kappa)$ decreases with dilution because the number of ions per unit volume decreases. This is true for both strong and weak electr

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(B) Conductivity $(\kappa)$ decreases with dilution because the number of ions per unit volume decreases. This is true for both strong and weak electrolytes. Statement $(A)$ is correct.
$(B)$ On dilution,the volume of the solution increases,so the number of ions per unit volume decreases. Statement $(B)$ is incorrect.
$(C)$ Molar conductivity $(\Lambda_m)$ increases with decrease in concentration (dilution) because the total volume containing one mole of electrolyte increases. Statement $(C)$ is correct.
$(D)$ For strong electrolytes,$\Lambda_m$ increases slowly with dilution,whereas for weak electrolytes,it increases sharply due to an increase in the degree of dissociation. Statement $(D)$ is correct.
$(E)$ For weak electrolytes,the change in molar conductivity with dilution is due to an increase in the degree of dissociation $(\alpha)$,not a decrease. Statement $(E)$ is incorrect.
The correct statements are $(A)$,$(C)$,and $(D)$. Therefore,the total number of correct statements is $3$.

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