Chemistry - Coordination Chemistry Question with Solution | TestHub

The compound $[Zn(C_9{H}_{6}NO{)}_2]$ features a $Z{n}^{2+}$ ion with a $d^{10}$ configuration, making it diamagnetic (Option A) due to completely paired electrons. As a four-coordinate complex with bulky, bidentate unsymmetrical ligands, it adopts a tetrahedral geometry, which precludes geometrical isomerism (Option C is incorrect) but allows for non-superimposable mirror images, thus showing optical isomerism (Option B). In this structure, there are four distinct chelate ring angles, specifically four $N-Zn-O$ bond angles (Option D).