Le-blanc process is employed in the manufacturing of

Options

A. Baking soda
B. Caustic soda
C. Soda ash and potash
D. Plaster of Paris

Answer

**Step-by-Step Solution:**

1. **Understanding the Le-Blanc Process:**
The Le-Blanc process is a historical method used for the production of sodium carbonate (soda ash) from sodium chloride (common salt).

2. **Starting Materials:**
The process begins with sodium chloride (NaCl) as the primary raw material.

3. **Chemical Reactions Involved:**
- The first step involves the reaction of sodium chloride with sulfuric acid (H2SO4) to produce sodium bisulfate (NaHSO4) and hydrochloric acid (HCl).
- The sodium bisulfate is then reacted with calcium carbonate (CaCO3) to produce sodium carbonate (Na2CO3), calcium sulfide (CaS), and carbon dioxide (CO2).

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

5. **Alternative Products:**
If potassium chloride (KCl) is used instead of sodium chloride, the process can be adapted to produce potassium carbonate (K2CO3), known as potash.

6. **Conclusion:**
Therefore, the Le-Blanc process is employed in the manufacturing of sodium carbonate (soda ash) and can also be adapted for potassium carbonate (potash) depending on the starting material used.

**Final Answer:**
The Le-Blanc process is employed in the manufacturing of sodium carbonate (soda ash) and potassium carbonate (potash).

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