Consider the following six electronic configurations (remaining inner orbitals are completely filled) and mark the incorrect option.
I.
II. \( \uparrow \downarrow \)
III. \( \uparrow \downarrow \)
\begin{tabular}{|l|l|l|l|l|}
\multicolumn{4}{|c}{\( 3 d \)} \\
\hline\( \uparrow \) & \( \uparrow \) & \( \uparrow \) & \( \uparrow \) & \\
\hline
\end{tabular}
IV.
\begin{tabular}{ll|l|l|l|l|l|} \( 4 s \) & \multicolumn{3}{c}{\( 3 d \)} \\ \hline\( \uparrow \) & \( \uparrow \) & \( \uparrow \) & \( \uparrow \) & \( \uparrow \) & \( \uparrow \) \\ \hline \end{tabular}\( \quad \)\begin{tabular}{|ll} V. & \( \uparrow \) \\ \hline \end{tabular}
\begin{tabular}{|l|l|l|l|} \multicolumn{3}{c}{\( 4 p \)} & \( 4 s \) \\ \hline\( \uparrow \) & \( \uparrow \) & \( \uparrow \uparrow \quad \) VI. \( \uparrow \downarrow \) \\ \hline \end{tabular}
\( 3 d \)
W
(a) Stabîlity order : II I \( \) IV \( \) III
(b) Order of spin multiplicity : IV III \( = \) I \( \) II
(c) \( \mathrm{V} \) does not violate all the three rules of electronic configuration
(d) If VI represents \( A \) then \( A^{+} \)when kept near a magnet, acts as paramagnetic substance.
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