InterviewSolution
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InterviewSolution
| 1. |
Explain the cleansing action of soap. |
| Answer» SOLUTION :A soap molecule has two parts : a HYDROCARBON and the `COO^(-)Na^(+)` group. The hydrocarbon part as hydrophobic and gets ATTACHED to dirt and grease, this part is water repelling. The `COO^(-)Na^(+)` part is hydrophilic and gets attached to water molecules. Thus, the dirt and grease attached to hydrophobic part of soap molecules get washed away becase the hydrophilic molcules `(COO^(-)Na^(+))` group makes the ENTIRE clump, FORMED by soap molecules and dirt, soluble. | |