Debye-Huckel-Onsager equation and Kohlrausch's law

2026 Re-NEET 1 question

1. For a salt XY, which is a strong electrolyte, the plot of $\Lambda_m$ versus $\sqrt{c}$ has a slope of -90.0 S cm$^2$ mol$^{-3/2}$ L$^{1/2}$ at 298 K. At 0.01 M concentration of XY, the value of $\Lambda_m$ is 145.0 S cm$^2$ mol$^{-1}$. The limiting molar conductivity of $Y^-$ ion ($\lambda^0_{Y^-}$, in S cm$^2$ mol$^{-1}$) at 298 K will be (Given: $\lambda^0_{X^+}=74.0$ S cm$^2$ mol$^{-1}$)