Total number of acidic oxides among N2O3,NO2, N2O,Cl2O7,SO2,CO,CaO,Na2O and NO is _____ .
Question
Total number of acidic oxides among N2O3, NO2, N2O, Cl2O7, SO2, CO, CaO, Na2O and NO is _____ .
Solution
Acidic oxides, also known as acid anhydrides, are usually non-metal oxides. They react with water to form acids.
- N2O3: Nitrogen is a non-metal. So, N2O3 is an acidic oxide.
- NO2: Nitrogen is a non-metal. So, NO2 is an acidic oxide.
- N2O: Nitrogen is a non-metal. However, N2O does not react with water to form an acid. So, N2O is not an acidic oxide.
- Cl2O7: Chlorine is a non-metal. So, Cl2O7 is an acidic oxide.
- SO2: Sulfur is a non-metal. So, SO2 is an acidic oxide.
- CO: Carbon is a non-metal. So, CO is an acidic oxide.
- CaO: Calcium is a metal. So, CaO is not an acidic oxide. It is a basic oxide.
- Na2O: Sodium is a metal. So, Na2O is not an acidic oxide. It is a basic oxide.
- NO: Nitrogen is a non-metal. So, NO is an acidic oxide.
Therefore, the total number of acidic oxides among N2O3, NO2, N2O, Cl2O7, SO2, CO, CaO, Na2O and NO is 6.
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