Solvay's process is used for the preparation of

Options

A. Ammonia
B. Sodium bicarbonate
C. Sodium carbonate
D. Calcium carbonate

Answer

**Step-by-Step Solution:**

1. **Understanding the Solvay Process**: The Solvay process is an industrial method for producing sodium carbonate (soda ash) from sodium chloride (table salt), ammonia, carbon dioxide, and water.

2. **Reactants Involved**: The primary reactants used in the Solvay process are:
- Ammonia (NH₃)
- Water (H₂O)
- Carbon Dioxide (CO₂)
- Sodium Chloride (NaCl)

3. **Chemical Reactions**: The process involves several key reactions:
- Ammonia reacts with water and carbon dioxide to form ammonium bicarbonate.
- This ammonium bicarbonate then reacts with sodium chloride to produce sodium bicarbonate (NaHCO₃) and ammonium chloride (NH₄Cl).
- Sodium bicarbonate is then heated to produce sodium carbonate (Na₂CO₃), releasing carbon dioxide and water.

4. **Final Product**: The main product of the Solvay process is sodium carbonate (Na₂CO₃), commonly known as soda ash.

5. **Byproducts**: The byproducts of the process include ammonium chloride (NH₄Cl) and sodium bicarbonate (NaHCO₃).

6. **Conclusion**: Therefore, the Solvay process is primarily used for the preparation of sodium carbonate (Na₂CO₃).

**Final Answer**: The Solvay process is used for the preparation of sodium carbonate (Na₂CO₃).

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