Number of acidic oxides among the following is:
(a) `N_(2)O` (b) `NO` (c) `N_(2)O_(3)` (d) `N_(2)O_(4)` (e) `N_(2)O_(5)` (f) `P_(4)O_(6)`
(g) `P_(4)O_(10)` (h) `SO_(3)` (i) `B_(2)O_(3)` (j) `CO`

Answer

To determine the number of acidic oxides among the given options, we will analyze each oxide based on its chemical nature.

### Step-by-Step Solution:

1. **Identify the Oxides**: The given oxides are:
- (a) `N₂O`
- (b) `NO`
- (c) `N₂O₃`
- (d) `N₂O₄`
- (e) `N₂O₅`
- (f) `P₄O₆`
- (g) `P₄O₁₀`
- (h) `SO₃`
- (i) `B₂O₃`
- (j) `CO`

2. **Classify the Oxides**: We need to classify these oxides into acidic, basic, and neutral:
- **Neutral Oxides**: These do not react with acids or bases. The neutral oxides from the list are:
- `N₂O` (Dinitrogen monoxide)
- `NO` (Nitric oxide)
- `CO` (Carbon monoxide)

- **Acidic Oxides**: These oxides react with bases to form salts and water. The acidic oxides from the list are:
- `N₂O₃` (Dinitrogen trioxide)
- `N₂O₄` (Dinitrogen tetroxide)
- `N₂O₅` (Dinitrogen pentoxide)
- `P₄O₆` (Tetraphosphorus hexoxide)
- `P₄O₁₀` (Tetraphosphorus decoxide)
- `SO₃` (Sulfur trioxide)
- `B₂O₃` (Boron trioxide)

3. **Count the Acidic Oxides**: Now, we will count the acidic oxides identified:
- `N₂O₃`
- `N₂O₄`
- `N₂O₅`
- `P₄O₆`
- `P₄O₁₀`
- `SO₃`
- `B₂O₃`

Total acidic oxides = 7.

### Final Answer:
The number of acidic oxides among the given options is **7**.

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