Answer the question on the basis of passage given below:
Adsorption is a surface phenomenon which can be expressed by means of an empirical relationship known as Freundlich Adsorption isotherm. The relationship is given by
\(\frac{x}{m} = Kp^{\frac{1}{n}}\left(n > 1\right)\)
\(x = \) Mass of the gas adsorbed
\(m = \) Mass of adsorbent
\(p = \) Pressure at which adsorption takes place
\(K\) and \(n\) are constant
When water is the dispersion medium, the colloidal system is called
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Aquasol
Sols (solids dispersed in liquids) are named after the dispersion medium; with water as the medium the sol is an aquasol.
Note: This question is from the pre-rationalised NCERT book (2022-23). The topic is not there in the latest NCERT book (2026-27), and it is also out of the CUET 2026 syllabus.
NCERT (Pre-rationalised edition, 2022-23):
Classification Based on Physical State of Dispersed Phase and Dispersion Medium – …
