NEET UG 2020 · Chemistry · Question 128
NEET 2020 Chemistry, question 128
Question 128 of the NEET 2020 paper (code E1) is a Chemistry question from Surface Chemistry. Its idea, Electrical Double Layer and Zeta Potential, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q128 · Chemistry
Measuring Zeta potential is useful in determining which property of colloidal solution ?
- 1Viscosity
- 2Solubility
- 3Stability of the colloidal particlesOfficial answer
- 4Size of the colloidal particles
Official answer: option 3 · NTA final answer key
Same idea
The only question on Electrical Double Layer and Zeta Potential
No other NEET paper from 2017–2026 tested this exact idea.
Electrical Double Layer and Zeta Potential: every question and how it was framed
The chapter
Surface Chemistry in ten years of NEET
8 questions from 2017–2026, asked in 7 of 10 papers, about 0.8 a paper. Surface Chemistry and Colloids alone had 8.