Which of the following pairs are correctly matched?

Options

A. Habar's process `(NH_(3))`
B. Bayer's process `(H_(2)SO_(4))`
C. Birkeland-Eyde process `(HNO_(3))`
D. Solvay process `(Na_(2)CO_(3))`

Answer

To determine which pairs are correctly matched, we need to analyze each process and its corresponding product. Let's go through each option step by step.

### Step 1: Analyze Haber's Process
- **Haber's Process** is used for the synthesis of ammonia (NH3).
- The chemical reaction is:
\[ N_2 + 3H_2 \rightarrow 2NH_3 \]
- **Conclusion**: This pair is correctly matched.

### Step 2: Analyze Baeyer's Process
- **Baeyer's Process** is used for the extraction of aluminum from its ore, specifically converting aluminum oxide (Al2O3) into soluble sodium aluminate (NaAlO2).
- The relevant reaction is:
\[ Al_2O_3 + 2NaOH \rightarrow 2NaAlO_2 + H_2O \]
- **Conclusion**: This pair is incorrectly matched as it does not produce sulfuric acid (H2SO4).

### Step 3: Analyze Birkeland-Eyde Process
- **Birkeland-Eyde Process** is a method for nitrogen fixation that produces nitric acid (HNO3) from atmospheric nitrogen and oxygen.
- The steps include:
1. \( N_2 + O_2 \) in an electric arc gives \( 2NO \)
2. \( 2NO + O_2 \) at high temperature gives \( 2NO_2 \)
3. \( 2NO_2 + H_2O \) produces \( HNO_3 \) and \( HNO_2 \)
- **Conclusion**: This pair is correctly matched.

### Step 4: Analyze Solvay Process
- **Solvay Process** is used for the production of sodium carbonate (Na2CO3) from sodium chloride (NaCl), ammonia (NH3), and carbon dioxide (CO2).
- The reaction is:
\[ NaCl + NH_3 + CO_2 + H_2O \rightarrow NaHCO_3 + NH_4Cl \]
- However, the main product of the Solvay Process is sodium carbonate, not sodium bicarbonate.
- **Conclusion**: This pair is incorrectly matched.

### Final Summary
- The correctly matched pairs are:
1. Haber’s Process - Ammonia (NH3)
2. Birkeland-Eyde Process - Nitric Acid (HNO3)

### Correctly Matched Pairs
- **Option 1**: Haber’s Process - NH3 (Correct)
- **Option 2**: Baeyer's Process - H2SO4 (Incorrect)
- **Option 3**: Birkeland-Eyde Process - HNO3 (Correct)
- **Option 4**: Solvay Process - Na2CO3 (Incorrect)