Question

Among LiCl, BeCl2, BCl3 and CCl4, the covalent bond character follows the order

Answer 1

The order is LiCl,BeCl2,BCl3 and CCl4 i.e CCl4 has the most covalent character while LiCl has least covalent character.The order stirly respects the Fajan's polarization rule i.e size of cation should be small and size of anion should be large and charge on the ions......to be high polarization (Higher polarization higher covalent character)