This method is used when the stains are soluble :

Question

Accepted Answer

Option 1, the "Solvent Method," is the correct answer for the question regarding the method used when stains are soluble. Here's why:

1. **Explanation for Option 1 (Solvent Method):**
   - The Solvent Method involves using a liquid substance that can dissolve other substances. When a stain is soluble, it means that it can be dissolved in a particular solvent. This method is effective because the solvent interacts with the stain at a molecular level, breaking it down and allowing it to be removed from the surface. Common solvents include water, alcohol, or specific chemical solvents designed to target particular types of stains. This method is widely used in cleaning processes because it directly targets the solubility property of the stain, making it an efficient and effective solution.

2. **Explanation for why other options are incorrect:**

- **Option 2 (Chemical Method):**
     - While the Chemical Method involves using chemicals to remove stains, it is not specifically focused on the solubility of the stain. This method might involve reactions that alter the stain chemically, but it does not necessarily dissolve the stain. Therefore, it is not the most appropriate choice when the stain is already soluble.

- **Option 3 (Absorbing Method):**
     - The Absorbing Method involves using materials that can absorb the stain, such as blotting paper or absorbent cloths. This method is more suitable for stains that are not easily dissolved but can be lifted by absorption. It does not rely on the solubility of the stain, making it less effective for soluble stains compared to the Solvent Method.

- **Option 4 (Suction Method):**
     - The Suction Method uses vacuum or suction devices to remove stains. This method is typically used for removing liquid spills or loose particles rather than dissolving stains. It does not address the solubility of the stain, which is why it is not the correct method for soluble stains.

In conclusion, the Solvent Method is the most appropriate and effective method for removing soluble stains because it directly utilizes the property of solubility to dissolve and remove the stain. The other methods do not specifically target the solubility of stains, making them less suitable for this particular scenario.