The metal carbonyl has a completely diamagnetic nature. Based on VBT, what is the hybridisation of i — Coordination Compounds Chemistry Question

💡 Solution & Explanation

Neutral Fe is $3d^6 4s^2$. The strong $CO$ ligands force the 4s electrons into the 3d subshell, causing complete pairing ($3d^8$). One 3d orbital becomes empty. Hybridisation is $dsp^3$, yielding a trigonal bipyramidal geometry.