Which of the following statement(s) is/are correct regarding the primary and secondary valencies in — Coordination Compounds Chemistry Question

💡 Solution & Explanation

According to Werner's postulates: Primary valency corresponds to the oxidation state and is satisfied by negatively charged counter-ions (A is correct). Secondary valency corresponds to the coordination number and can be satisfied by negative, neutral, or even positive ligands (B is correct). Secondary valency is non-ionizable (D is correct). Primary valency is non-directional, while secondary valency is directional (C is incorrect).