`N_(2)+3H_(2) to NH_(3)`

Options

A. For disproportionation reaction.
B. For comproportionation reaction.
C. For either intermolecular redox reaction or displacement reaction
D. For either thermal combination redox reaction or thermal decomposition redox reaction.

Answer

To determine the type of reaction for the equation \( N_2 + 3H_2 \rightarrow 2NH_3 \), we can follow these steps:

### Step 1: Identify the Reactants and Products
- The reactants are nitrogen gas (\( N_2 \)) and hydrogen gas (\( H_2 \)).
- The product is ammonia (\( NH_3 \)).

### Step 2: Assign Oxidation Numbers
- For \( N_2 \), the oxidation number of nitrogen is 0 (since it is in its elemental form).
- For \( H_2 \), the oxidation number of hydrogen is also 0 (since it is in its elemental form).
- In \( NH_3 \), the oxidation number of nitrogen is -3 and for hydrogen, it is +1.

### Step 3: Analyze Changes in Oxidation Numbers
- Nitrogen changes from 0 in \( N_2 \) to -3 in \( NH_3 \). This indicates a reduction (gain of electrons).
- Hydrogen changes from 0 in \( H_2 \) to +1 in \( NH_3 \). This indicates an oxidation (loss of electrons).

### Step 4: Determine the Type of Reaction
- Since there is both oxidation and reduction occurring, this reaction is classified as a redox reaction.
- Additionally, since two reactants combine to form a single product, it is also a combination reaction.

### Conclusion
The reaction \( N_2 + 3H_2 \rightarrow 2NH_3 \) is a **combination reaction** and a **redox reaction**.

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