Limiting molar conductivity of which among thefollowing ion is maximum in water at 298 K(1) H\ast(2) Nat40(3) K\ast(4) Ca2+

Q. Limiting molar conductivity for some ions is given(in S $c{m}^2$ $mo{l}^{-1}$):
$N{a}^{+}=50.1$, $C{l}^{-}=76.3$, $H^{+}=349.6$, $C{H}_{3}CO{O}^{-}=40.9$, $C{a}^{2+}-119.0$.
What will be the limiting molar conductivities $\left({\Lambda }_m^o\right)$ of $CaC{l}_2,C{H}_{3}COONa$ and $NaCl$ respectively?

Q. At $298K$, the limiting molar conductivity of a weak monobasic acid is $4\times {10}^{2}Sc{m}^{2}mo{l}^{-1}$. At $298K$, for an aqueous solution of the acid the degree of dissociation is $\alpha$ and the molar conductivity is $y\times {10}^{2}Sc{m}^{2}mo{l}^{-1}$ . At $298K$, upon $20$ times dilution with water, the molar conductivity of the solution becomes $3y\times {10}^{2}Sc{m}^{2}mo{l}^{-1}$

The value of $y$ is

Q. Limiting molar conductivities of $M{g}^{2+}$ and $C{l}^{-}$ ions are 106.0 S.cm${}^2$. mol${}^{-1}$ and

Q. If molar conductivity of $C{a}^{2+}$ and $C{l}^{-}$ ions are $119$ and $71Sc{m}^{2}mo{l}^{-1}$ respectively, then the molar conductivity of $CaC{l}_2$ at infinite dilution is