JEE Main 202127 AugustEvening Shift
- Exam
- JEE Main
- Year
- 2021
- Date
- 27 August
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Surface Chemistry
JEE Main 2021 · 27 August · Evening Shift · Chemistry · Surface Chemistry
Lyophilic sols are more stable than lyophobic sols because:
Lyophilic sols are more stable than lyophobic sols because:
Options
- Athe colloidal particles have no charge.
- Bthe colloidal particles have positive charge.
- Cthe colloidal particles are solvated.
- Dthere is a strong electrostatic repulsion between the negatively charged colloidal particles.
Correct answer
C. the colloidal particles are solvated.
Step-by-step solution
Lyophilic sols are quite stable and cannot be easily coagulated. Lyophobic sols need stabilising agents for their preservation.
| Property | Lyophilic colloids | Lyophobic colloids |
| Stability | These are very stable | These are unstable and require traces of stabilizers |