Oxide of nitrogen which is acidic in nature and blue solid

Options

A. `N_(2)O`
B. `NO`
C. `N_(2) O_(3)`
D. `NO_(2)`

Answer

To solve the question regarding the oxide of nitrogen that is acidic in nature and a blue solid, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Oxides of Nitrogen**:
The common oxides of nitrogen include:
- Dinitrogen oxide (N2O)
- Nitrogen monoxide (NO)
- Dinitrogen trioxide (N2O3)
- Nitrogen dioxide (NO2)
- Dinitrogen tetroxide (N2O4)
- Dinitrogen pentoxide (N2O5)

2. **Determine the Oxidation States**:
- In N2O, nitrogen has an oxidation state of +1.
- In NO, nitrogen has an oxidation state of +2.
- In N2O3, nitrogen has an oxidation state of +3.
- In NO2, nitrogen has an oxidation state of +4.
- In N2O4, nitrogen has an oxidation state of +4.
- In N2O5, nitrogen has an oxidation state of +5.

3. **Identify Acidic Nature**:
Generally, oxides of nitrogen with higher oxidation states tend to be acidic. Thus, we focus on:
- N2O3 (+3)
- NO2 (+4)
- N2O5 (+5)

4. **Identify the Color of the Oxides**:
- N2O is a colorless gas.
- NO is a colorless gas.
- N2O3 is a blue solid.
- NO2 is a reddish-brown gas.
- N2O4 is colorless.
- N2O5 is a colorless solid.

5. **Conclusion**:
From the above analysis, N2O3 is the only oxide that is both acidic (due to its oxidation state of +3) and a blue solid. Therefore, the answer to the question is:

**N2O3 (Dinitrogen trioxide)**.

### Final Answer:
The oxide of nitrogen which is acidic in nature and blue solid is **N2O3**.

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