The set containing acidic oxides only are

Options

A. `SO_(2) , Cl_(2) O_(7) , CO`
B. `Al_(2) O_(3) , NO , N_(2) O_(5)`
C. `NO , N_(2) O_(3) , N_(2) O_(5)`
D. `N_(2) O_(3) , SO_(2) , N_(2) O_(5)`

Answer

To solve the question regarding the set containing only acidic oxides, we will follow these steps:

### Step 1: Understand Acidic Oxides
Acidic oxides are defined as oxides that react with water to form acids. Common examples include oxides of non-metals such as sulfur dioxide (SO2), nitrogen trioxide (N2O3), and phosphorus pentoxide (P2O5).

### Step 2: Analyze the Given Sets
We need to analyze each set of oxides provided in the question to determine which ones are acidic.

**Set 1: SO2, Cl2O7, CO**
- **SO2**: This is an acidic oxide because it reacts with water to form sulfurous acid (H2SO3).
- **Cl2O7**: This is also an acidic oxide as it reacts with water to form perchloric acid (HClO4).
- **CO**: Carbon monoxide is a neutral oxide and does not react with water to form an acid.

**Conclusion for Set 1**: This set contains one neutral oxide (CO), so it is not a set of only acidic oxides.

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**Set 2: NO, N2O3**
- **NO**: Nitric oxide is a neutral oxide and does not react with water to form an acid.
- **N2O3**: This is an acidic oxide because it reacts with water to form nitric acid (HNO3).

**Conclusion for Set 2**: This set contains one neutral oxide (NO), so it is not a set of only acidic oxides.

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**Set 3: N2O3, SO2, N2O5**
- **N2O3**: As mentioned, this is an acidic oxide.
- **SO2**: This is also an acidic oxide.
- **N2O5**: This is another acidic oxide as it reacts with water to form nitric acid (HNO3).

**Conclusion for Set 3**: All three oxides in this set are acidic oxides.

### Step 3: Identify the Correct Set
From the analysis, we find that the only set containing only acidic oxides is **Set 3: N2O3, SO2, N2O5**.

### Final Answer
The set containing acidic oxides only is **Set 3: N2O3, SO2, N2O5**.

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