Question

Hydrophilic group of a soap or detergent solution is

• A. Water hating
• B. Soil loving
• C. Water loving
• D. Soil hating

Hint:

Hydrophilic means water loving, while hydrophobic means water hating.

Answer 1

The Correct Option is C

Soap and detergent molecules have two parts. One part is hydrophobic. The hydrophobic part is water hating and oil loving. It attaches to grease or dirt. The other part is hydrophilic. The word hydrophilic is made from: \[ \text{hydro}=\text{water} \] and \[ \text{philic}=\text{loving}. \] So hydrophilic means: \[ \text{water loving}. \] In soap or detergent molecules, the hydrophilic group remains attracted towards water. This helps soap or detergent molecules form micelles and remove oily dirt from surfaces. Therefore, hydrophilic group means: \[ \text{Water loving}. \]