Which one of the following is an amphoteric oxide? A CO<sub>2</sub> B SO<sub>2</sub> C Al<sub>2</sub>O<sub>3</sub> D CuO Which one of the following is an amphoteric oxide? Correct Answer Al<sub>2</sub>O<sub>3</sub> Bissoy MCQ Team Chemistry GK Chapter Wise Acid Base And Salts