Compound $A$ used as a strong oxidizing agent is amphoteric in nature. It is the part of lead storage batteries. Compound $A$ is

Which one of the following is the correct plot of $\Lambda_m$ (in $S \ cm^2 \ mol^{-1}$) and $\sqrt{C}$ (in $mol^{1/2} \ L^{-1/2}$) for a $KCl$ solution? ($y=\Lambda_m$; $x=\sqrt{C}$)

Which relation is correct for $\Lambda^0_{m(H_2O)}$?

Which is the correct symbolic representation for the following cell reaction?
$Mg_{(s)} + Cl_{2(g)} \rightarrow Mg^{2+}_{(aq)} + 2Cl^{-}_{(aq)}$

Which of the following metals can displace copper from a copper sulphate solution?

How can an electrochemical cell be converted into an electrolytic cell?