Which of the following statements is correct regarding the cathode of an electrochemical cell?

At $25^{\circ} C$,the molar conductance at infinite dilution for the strong electrolytes $NaOH$,$NaCl$ and $BaCl_{2}$ are $248 \times 10^{-4}$,$126 \times 10^{-4}$ and $280 \times 10^{-4} \ S \ m^{2} \ mol^{-1}$ respectively. $\lambda_{m}^{o} Ba(OH)_{2}$ in $S \ m^{2} \ mol^{-1}$ is

Which of the following will not displace hydrogen from dilute acids?

What are reactive electrodes and inert electrodes? Give examples.

What is the correct expression for $\Lambda_{m(NH_4OH)}^0$?

Which of the following curves represents the variation of $\lambda_{M}$ with $\sqrt{C}$ for $AgNO_{3}$?