Which of the following is different from other three oxides? — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Step 1: Categorize the chemical nature of the given oxides. Step 2: MgO is an alkaline earth metal oxide which is highly basic. SnO, ZnO, and PbO are metal oxides that are amphoteric in nature. Step 3: Since MgO is purely basic whereas the other three oxides are amphoteric, MgO is the different one, corresponding to option (a).