Which of the following statements is incorrec | vedclass

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(B) Specific conductance (conductivity,$\kappa$) is defined as the conductance of $1 \, cm^3$ of an electrolyte solution,so option $A$ is correct.On i

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Specific conductance increases while equivalent conductance decreases on increasing dilution.

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(B) Specific conductance (conductivity,$\kappa$) is defined as the conductance of $1 \, cm^3$ of an electrolyte solution,so option $A$ is correct.On increasing dilution,the number of ions per unit volume decreases,which leads to a decrease in specific conductance $(\kappa)$. However,equivalent conductance $(\wedge_{eq})$ increases because the total volume containing one equivalent of electrolyte increases,so option $B$ is incorrect.For weak electrolytes,the degree of dissociation increases with dilution,and $\wedge_{eq}$ increases rapidly. The curve between $\wedge_{eq}$ and $\sqrt{C}$ does not become linear at low concentrations,so the limiting molar conductivity cannot be determined by extrapolation,making option $C$ correct.Metals conduct electricity due to the movement of free electrons,making option $D$ correct.Therefore,the incorrect statement is $B$.

Column $I$	Column $II$
$(A)$. Kohlrausch law can calculate	$(P)$. $\frac{\Lambda_m^c}{\Lambda_m^o}$
$(B)$. Molar conductance $\Lambda_m$	$(Q)$. $\frac{1}{R} \times \frac{l}{A}$
$(C)$. Specific conductance $\kappa$	$(R)$. $\Lambda_m^o$ of $Ca_3(PO_4)_2$
$(D)$. Degree of ionization of weak electrolyte	$(S)$. $\frac{\kappa \times 1000}{M}$

Which of the following statements is incorrect?

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