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 1: Understand the properties of nitrogen oxides
We need to identify nitrogen oxides and their properties, specifically focusing on their acidity and physical state (solid, liquid, or gas).

**Hint:** Review the common nitrogen oxides and their characteristics.

### Step 2: List common nitrogen oxides
The common oxides of nitrogen include:
- N2O (Dinitrogen monoxide)
- NO (Nitric oxide)
- N2O3 (Dinitrogen trioxide)
- NO2 (Nitrogen dioxide)

**Hint:** Make a note of the physical states and acidity of these oxides.

### Step 3: Determine the acidity of each oxide
Acidity in this context refers to the ability of the oxide to accept electron pairs. Generally, the higher the oxidation state of nitrogen, the more acidic the oxide tends to be.

- N2O: Oxidation state of nitrogen is +1 (neutral)
- NO: Oxidation state of nitrogen is +2 (neutral)
- N2O3: Oxidation state of nitrogen is +3 (acidic)
- NO2: Oxidation state of nitrogen is +4 (acidic)

**Hint:** Remember that oxides with higher oxidation states are typically more acidic.

### Step 4: Identify the physical state of the oxides
- N2O: Colorless gas
- NO: Colorless gas
- N2O3: Blue solid
- NO2: Brown gas

**Hint:** Focus on the physical states of the oxides to find the blue solid.

### Step 5: Conclude the answer
From the analysis, we find that N2O3 is the oxide of nitrogen that is both acidic in nature (due to its oxidation state of +3) and exists as a blue solid.

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