Question:
Soap solution is used for cleaning dirty clothes because
Soap solution is used for cleaning dirty clothes because
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Cleaning agents work by reducing surface tension, which improves wetting and dirt removal.
Updated On: Feb 18, 2026
- surface tension of solution is decreased
- viscosity of solution is increased
- temperature of solution is decreased
- surface tension of solution is increased
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The Correct Option is A
Solution and Explanation
Step 1: Effect of soap on water.
Soap molecules reduce the surface tension of water by weakening the cohesive forces between water molecules.
Step 2: Cleaning action.
Lower surface tension allows the soap solution to spread easily and penetrate the fabric pores, helping to remove dirt and grease.
Step 3: Conclusion.
Therefore, soap solution is effective in cleaning because it decreases the surface tension of water.
Soap molecules reduce the surface tension of water by weakening the cohesive forces between water molecules.
Step 2: Cleaning action.
Lower surface tension allows the soap solution to spread easily and penetrate the fabric pores, helping to remove dirt and grease.
Step 3: Conclusion.
Therefore, soap solution is effective in cleaning because it decreases the surface tension of water.
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