Why at higher oxidation state covalent bond is formed?
According to Fajan's rule,
More the polarisation more will be the covalent character. Polarisation is directly proportional to cationic charge. So if a metal loses its electron more it goes to higher oxidation state and it achieves the oxidation state higher. So the covalent character also increases.
More the polarisation more will be the covalent character. Polarisation is directly proportional to cationic charge. So if a metal loses its electron more it goes to higher oxidation state and it achieves the oxidation state higher. So the covalent character also increases.