NEET UG 2021 · Chemistry · Question 61
NEET 2021 Chemistry, question 61
Question 61 of the NEET 2021 paper (code O1) is a Chemistry question from Surface Chemistry. Its idea, Optical and Kinetic Properties of Colloids, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q61 · Chemistry
The right option for the statement “Tyndall effect is exhibited by”, is :
- 1Starch solutionOfficial answer
- 2Urea solution
- 3NaCl solution
- 4Glucose solution
Official answer: option 1 · NTA final answer key
Same idea
The only question on Optical and Kinetic Properties of Colloids
No other NEET paper from 2017–2026 tested this exact idea.
Optical and Kinetic Properties of Colloids: 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.