NEET UG 2018 · Botany · Question 113
NEET 2018 Botany, question 113
Question 113 of the NEET 2018 paper (code AA) is a Botany question from Environmental Issues. Its idea, Tropospheric Ozone and Smog, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 4.
Updated 2026-10-08
Q113 · Botany
Which of the following is a secondary pollutant ?
- 1
- 2
- 3CO
- 4Official answer
Official answer: option 4 · CBSE official answer key
Same idea
The only question on Tropospheric Ozone and Smog
No other NEET paper from 2017–2026 tested this exact idea.
Tropospheric Ozone and Smog: every question and how it was framed
The chapter
Environmental Issues in ten years of NEET
19 questions from 2017–2026, asked in 7 of 10 papers, about 1.8 a paper. Greenhouse Effect alone had 3.