The most basic oxide among the following is

Options

A. `N_a 2_O `
B. `N_2 O_3 `
C. `N_2 O_5 `
D. `P_2 O_5`

Answer

To determine the most basic oxide among the given options, we can follow these steps:

### Step 1: Identify the nature of the oxides
- Basic oxides are typically formed by metals and react with acids to form salts and water.
- Acidic oxides are generally formed by non-metals and react with bases.
- Amphoteric oxides can behave as both acidic and basic, depending on the reacting species.

### Step 2: Analyze the given oxides
Assuming the options include:
1. Na2O (Sodium oxide)
2. N2O3 (Nitrogen trioxide)
3. P2O5 (Phosphorus pentoxide)
4. MgO (Magnesium oxide)

### Step 3: Classify each oxide
- **Na2O (Sodium oxide)**: Sodium is a metal, and its oxide is basic.
- **N2O3 (Nitrogen trioxide)**: Nitrogen is a non-metal, and its oxide is acidic.
- **P2O5 (Phosphorus pentoxide)**: Phosphorus is also a non-metal, and its oxide is acidic.
- **MgO (Magnesium oxide)**: Magnesium is a metal, and its oxide is basic.

### Step 4: Compare the basicity
Among the basic oxides:
- Na2O is a strong basic oxide because sodium readily reacts with water to form sodium hydroxide (NaOH).
- MgO is also basic, but it is less soluble in water compared to Na2O.

### Step 5: Conclusion
Since Na2O is a stronger base than MgO due to its higher solubility and reactivity with water, **Na2O is the most basic oxide among the options provided**.

### Final Answer
The most basic oxide among the following is **Na2O (Sodium oxide)**.

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