Question 1
Hydrogen, Oxygen and OxidesWhich of the following oxides is both acidic and basic in nature?
- A.CO2
- B.Na2O
- C.Al2O3
- D.P4O10
Show the answer and explanation
Answer: C (Al2O3)
Explanation
Aluminium oxide is amphoteric: it reacts with both acids and alkalis. CO2 and P4O10 are acidic, Na2O is basic.