$$ \begin{array}{|c|c|} \hline x & y \\ \hline \hline 42.7 & 57.3 \\ \hline \end{array} $$

$$ \begin{array}{|c|c|} \hline x & y \\ \hline \hline 14.3 & 85.7 \\ \hline \end{array} $$

$$ \begin{array}{|c|c|} \hline x & y \\ \hline \hline 85.7 & 14.3 \\ \hline \end{array} $$

$$ \begin{array}{|c|c|} \hline x & y \\ \hline \hline 11.1 & 88.9 \\ \hline \end{array} $$

Statement I is true but Statement II is false

Both Statement I and Statement II are false

Statement I is false but Statement II is true

Both Statement I and Statement II are true

$\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ and $\left[\mathrm{NiCl}_4\right]^{2-}$ are diamagnetic and $\mathrm{Ni}(\mathrm{CO})_4$ is paramagnetic.

$\mathrm{Ni}(\mathrm{CO})_4$ is diamagnetic and $\left[\mathrm{NiCl}_4\right]^{2-}$ and $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ are paramagnetic.

$\mathrm{Ni}(\mathrm{CO})_4$ and $\left[\mathrm{NiCl}_4\right]^{2-}$ are diamagnetic and $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ is paramagnetic.

$\mathrm{Ni}(\mathrm{CO})_4$ and $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ are diamagnetic and $\left[\mathrm{NiCl}_4\right]^{2-}$ is paramagnetic.