Which of the following is not Lewis’s acid ? — Ionic Equilibrium Chemistry Question

💡 Solution & Explanation

Out of the given compounds, PH3 has complete octet with no shortage of electrons. So, it will not accept electrons. BF3 is sp2 hybridized with trigonal planar structure. 3 3 AlCl , FeCl are ionic solids and they have crystal structure. The central atom present in these have incomplete octet due to shortage of electrons. Therefore, they can accept electrons from any Lewis’s base and can act as Lewis’s acid.