Which of the following nitrate gives off different nitrogen oxide then rest of the other nitrates here?

Options

A. Lithium nitrate
B. Lead nitrate
C. Barium nitrate
D. Ammonium nitrate

Answer

To solve the question of which nitrate gives off a different nitrogen oxide compared to the others, we can analyze the decomposition reactions of each nitrate mentioned.

### Step-by-Step Solution:

1. **Identify the Nitrates**: We have four nitrates to consider: Lithium Nitrate (LiNO3), Lead Nitrate (Pb(NO3)2), Barium Nitrate (Ba(NO3)2), and Ammonium Nitrate (NH4NO3).

2. **Decomposition of Lithium Nitrate (LiNO3)**:
- When heated, Lithium Nitrate decomposes as follows:
\[ 4 \text{LiNO}_3 \rightarrow 2 \text{Li}_2\text{O} + 4 \text{NO}_2 + \text{O}_2 \]
- Products: NO2 (Nitrogen Dioxide) and O2 (Oxygen).

3. **Decomposition of Lead Nitrate (Pb(NO3)2)**:
- Upon heating, Lead Nitrate decomposes:
\[ 2 \text{Pb(NO}_3)_2 \rightarrow 2 \text{PbO} + 4 \text{NO}_2 + \text{O}_2 \]
- Products: NO2 and O2.

4. **Decomposition of Barium Nitrate (Ba(NO3)2)**:
- Barium Nitrate decomposes similarly:
\[ 2 \text{Ba(NO}_3)_2 \rightarrow 2 \text{BaO} + 4 \text{NO}_2 + \text{O}_2 \]
- Products: NO2 and O2.

5. **Decomposition of Ammonium Nitrate (NH4NO3)**:
- When heated, Ammonium Nitrate decomposes as follows:
\[ 2 \text{NH}_4\text{NO}_3 \rightarrow \text{N}_2\text{O} + 2 \text{H}_2\text{O} \]
- Products: N2O (Dinitrogen Oxide) and H2O (Water).

6. **Comparison of Products**:
- From the reactions, we see that:
- Lithium Nitrate, Lead Nitrate, and Barium Nitrate all produce NO2 as a nitrogen oxide.
- Ammonium Nitrate produces N2O, which is different from the others.

7. **Conclusion**:
- The nitrate that gives off a different nitrogen oxide compared to the rest is **Ammonium Nitrate (NH4NO3)**.

### Final Answer:
Ammonium Nitrate (NH4NO3) gives off a different nitrogen oxide (N2O) compared to the others (NO2).

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