OnlineCBT Logo OnlineCBT
⚲
हिन्दी
OnlineCBT Logo OnlineCBT
⚲

Biology · PYQ NEET UG 2018

हिन्दी

Which of the following is a secondary pollutant?

  1. A
    SO2
  2. B
    CO2
  3. C
    CO
  4. D
    O3
View Answer & Solution

Correct answer · Option D

O3

Explanation

Ozone (\( O_3 \)) is formed in the atmosphere by photochemical reactions involving primary pollutants like hydrocarbons and nitrogen oxides, making it a secondary pollutant.

Related questions

Natality refers to→AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?→The difference between spermiogenesis and spermiation is→Among the following sets of examples for divergent evolution, select the INCORRECT option.→
OnlineCBT

Our mission is "To educate students and help them excel in competitive exam preparation to the best of their potential. To impart good values in students and develop their overall exam readiness."

Useful Link
Important Pages
Courses & Practice
Contact
Address

Plot No 10, Dholigumti, Panditpura Road, Bandikui, Dausa(Raj) 303313

Contact

+91 7877547686

 E-mail

onlinecbtportal@gmail.com

 Helpline Number

+91 7877547686
Share
Click To Download
Get it on Google Play

ऐप डाउनलोड करने
के लिए Google Play पर
उपलब्ध है

Terms of Use | Privacy Policy | Cookie Policy | Disclaimer | Editorial Policy | Fact Check | Corrections | DMCA | Ad Choices

Copyright © 2026 - OnlineCBT.in. All Rights Reserved.

WhatsApp Chat