Rank the following in terms of increasing ox- ide acidity.

Question

1. Na2O, CO2, NO2
2. CO2, NO2, Na2O
3. NO2, CO2, Na2O
4. CO2, Na2O, NO2

Answer 1

1. Na2O, CO2, NO2
This is because Metal oxides form a strong base, and are therefor very weak acids. This means that this is the only viable option. Hope this helps!
By the way, I know this is right because I put this answer in my homework just know and got it right.