Question

Which of the following are basic oxides? * Multiple options may be correct

Al2O3

SO2

Na2O

CaO​

Answer 1

Answer:

Na2O is basic oxide, Al2O3 is amhoteric and NO is neutral oxide.

Explanation:

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Answer 2

Answer:

Calcium oxide (CaO) , is a metal oxide. Like other metal oxides it is a basic oxide because it dissolves in water to form calcium hydroxide

Sodium oxide (Na2O ) is a simple strongly basic oxide. It is basic because it contains the oxide ion, O2-, which is a very strong base with a high tendency to combine with hydrogen ions. Reaction with water: Sodium oxide reacts exothermically with cold water to produce sodium hydroxide solution.