Step 1: Understand Crystal Field Splitting.
Crystal field splitting depends on the ligand field strength. Ligands are arranged in the spectrochemical series.
Step 2: Compare the ligands involved.
Ammonia (NH$_3$) is a stronger field ligand than water (H$_2$O), so it causes more splitting.
Step 3: Analyze the given order.
The statement “[Fe(H$_2$O)$_6$]$^{2+}$ > [Fe(NH$_3$)$_6$]$^{2+}$” is incorrect because H$_2$O is weaker than NH$_3$.
The logic gate equivalent to the combination of logic gates shown in the figure is