When soap is added to water, the ionic (hydrophilic) end of the soap m…

Question

When soap is added to water, the ionic (hydrophilic) end of the soap molecule interacts with

Accepted Answer

B. {'text': 'Water', 'label': 'B'}

1. A soap molecule has a long hydrocarbon tail (hydrophobic) and a −COO⁻Na⁺ head (hydrophilic).
2. In water, tails cluster inward (avoiding water) and heads point outward toward water.
3. This forms a micelle with grease trapped inside the ball.
4. The soap effectively lifts the dirt off cloth into the water.
_Source: NCERT Class 10 Science, Ch 4 "Carbon and its Compounds", §4.3_

Answer

{'text': 'Grease and oil', 'label': 'A'}

Answer

{'text': 'The dirt only', 'label': 'C'}

Answer

{'text': 'Air molecules only', 'label': 'D'}