Select the correct statement regarding oxides

Options

A. As the electronegativity of element increases, acidic character of oxide increases
B. Down the group the acidic nature of oxide increases
C. Both `B_2O_3 and Al_2O_3` are acidic oxides
D. Nitrogen forms all the three type of oxides (neutral , basic and acidic)

Answer

To solve the question regarding the correct statement about oxides, we will analyze the characteristics of oxides based on their metallic and non-metallic nature.

### Step-by-Step Solution:

1. **Understanding Oxides**:
- Oxides are compounds formed when oxygen combines with another element. They can be classified as basic, acidic, or amphoteric based on the nature of the element they are combined with.

2. **Basic and Acidic Oxides**:
- Basic oxides are typically formed by metals, while acidic oxides are formed by non-metals. For example, sodium oxide (Na2O) is basic, and carbon dioxide (CO2) is acidic.

3. **Trends in Basicity and Acidity**:
- As we move down a group in the periodic table, the metallic character of elements increases, which generally leads to an increase in the basic character of their oxides. Therefore, basic oxides become more prevalent.
- Conversely, as we move from left to right across a period, the metallic character decreases, and the non-metallic character increases. This results in an increase in the acidic character of oxides.

4. **Electronegativity and Oxide Nature**:
- Electronegativity increases from left to right across a period, which means that non-metals, having higher electronegativity, form more acidic oxides. For example, sulfur forms SO2, which is acidic, while sodium forms Na2O, which is basic.

5. **Analyzing the Statements**:
- **Statement 1**: "Oxides react with metals like Sodium, Phosphorus etc." - This is true as oxides can react with metals.
- **Statement 2**: "Oxides are the base of metals and Acids are the base of non-metals" - This is misleading; oxides of metals are basic, while non-metals form acidic oxides.
- **Statement 3**: "The basic character of oxides increases down the group" - This is true as the metallic character increases down the group.
- **Statement 4**: "The acidic character of oxides increases down the group" - This is incorrect; the acidic character generally decreases down the group.
- **Statement 5**: "Nitrogen forms all three types of oxides, neutral, basic, and acidic" - This is incorrect; nitrogen primarily forms acidic and neutral oxides.

6. **Conclusion**:
- The correct statement regarding oxides is that "the basic character of oxides increases down the group."

### Final Answer:
The correct statement regarding oxides is: "The basic character of oxides increases down the group."