Chemical name of washing soda is :

Question

Accepted Answer

The chemical name of washing soda is sodium carbonate, which is correctly identified as Option 3. Washing soda, or sodium carbonate (Na2CO3), is a white, water-soluble salt commonly used in cleaning products. It is known for its ability to soften water and remove stains, making it an effective ingredient in laundry detergents.

1. **Explanation for Option 3 (Sodium carbonate):**
   - Sodium carbonate is a chemical compound with the formula Na2CO3. It is commonly referred to as washing soda due to its widespread use in cleaning and laundry applications. The compound is effective in removing grease, oil, and alcohol stains, and it also helps to soften water by precipitating calcium and magnesium ions. This property enhances the effectiveness of soaps and detergents, making sodium carbonate an essential component in many cleaning products.

2. **Explanation for why other options are incorrect:**
   - **Option 1 (Sodium chloride):** Sodium chloride, commonly known as table salt, has the chemical formula NaCl. It is not used as a cleaning agent like washing soda and does not possess the same water-softening properties. Therefore, it is not the chemical name for washing soda.
   
   - **Option 2 (Sodium hydrogen carbonate):** Sodium hydrogen carbonate, also known as sodium bicarbonate or baking soda, has the chemical formula NaHCO3. While it is used in some cleaning applications, it is distinct from washing soda and does not share the same chemical properties or uses. Thus, it is not the correct chemical name for washing soda.
   
   - **Option 4 (Sodium hydroxide):** Sodium hydroxide, with the chemical formula NaOH, is a strong base commonly known as lye or caustic soda. It is used in various industrial processes and cleaning applications but is chemically different from sodium carbonate. It is not referred to as washing soda.

In conclusion, the correct chemical name for washing soda is sodium carbonate, which is accurately represented by Option 3.