$24.$The limiting molar conductivity of $N{a}^{+}$aq and of $C{l}^{-}$ aq at $298K$ are $5\mathrm{.}01$ and $7\mathrm{.}635mS\frac{m^2}{m}ol$ respectively. If the molar conductivity of $0\mathrm{.}1$MNaCl aq is $10\mathrm{.}67mS\frac{m^2}{m}ol.$ Then the molar conductivity of $0\mathrm{.}05$MNaCl aq in $mS\frac{m^2}{m}ol$ is

$27\mathrm{.}98$

$1\mathrm{.}248$

$11\mathrm{.}248$

$10\mathrm{.}248$