Which of the following cannot result in the formation of `NO` ?

Options

A. `N_(2)+O_(2)` (Electric arc)
B. `NH_(3)+O_(2),(Pt//Rh catalyst// 1200 K)`
C. `NaNO_(3)//HCl`
D. None of these

Explanation

To determine which of the given options cannot result in the formation of NO (nitric oxide), we will analyze each option step by step.

### Step 1: Analyze the first option - N2 + O2
1. **Reaction**: N2 + O2
2. **Conditions**: Electric arc (high temperature).
3. **Products**: The reaction of nitrogen and oxygen under high temperature conditions results in the formation of nitric oxide (NO).
\[ N_2 + O_2 \rightarrow 2NO \]
4. **Conclusion**: This option can form NO.

### Step 2: Analyze the second option - NH3 + O2
1. **Reaction**: NH3 + O2
2. **Conditions**: Presence of a catalyst (platinum) and temperature of 1200 K.
3. **Products**: The reaction of ammonia with oxygen produces nitric oxide (NO) and water.
\[ 4NH_3 + 3O_2 \rightarrow 2NO + 6H_2O \]
4. **Conclusion**: This option can also form NO.

### Step 3: Analyze the third option - NaNO3 + HCl
1. **Reaction**: NaNO3 + HCl
2. **Products**: The reaction between sodium nitrate and hydrochloric acid produces sodium chloride and nitric acid.
\[ NaNO_3 + HCl \rightarrow NaCl + HNO_3 \]
3. **Further Reaction**: When nitric acid (HNO3) decomposes, it can produce nitrogen dioxide (NO2), water, and oxygen, but not nitric oxide (NO).
\[ 4HNO_3 \rightarrow 2NO_2 + 2H_2O + O_2 \]
4. **Conclusion**: This option does not form NO.

### Final Conclusion
Based on the analysis of all three options, the correct answer is:
**Option C: NaNO3 + HCl cannot result in the formation of NO.**