JEE Advanced 2012Paper 1
- Exam
- JEE Advanced
- Year
- 2012
- Paper
- Paper 1
- Subject
- Chemistry
- Chapter
- Surface Chemistry
JEE Advanced 2012 · Paper 1 · Chemistry · Surface Chemistry
Choose the correct reason(s) for the stability of the lyophobic...
Choose the correct reason(s) for the stability of the lyophobic colloidal particles.
Options
- APreferential adsorption of ions on their surface from the solution.
- BPreferential adsorption of solvent on their surface from the solution.
- CAttraction between different particles having opposite charges on their surface.
- DPotential difference between the fixed layer and the diffused layer of opposite charges around the colloidal particles.
Correct answer
A. Preferential adsorption of ions on their surface from the solution.
Step-by-step solution
(a) When two or more ions are present in the dispersion medium, preferential adsorption of the ion common to the colloidal particle takes place.
(d) This is called zeta potential which helps in increasing the stability of the lyophobic sol.