Eye irritation is the common phenomenon during smog. It is mostly caused by:…
2024
Eye irritation is the common phenomenon during smog. It is mostly caused by:
(A) Formaldehyde
(B) Per-oxy acetyl Nitrate
(C) Ozone
(D) Acrolin
Choose the correct answer from the options given below:
Answer: D. (B), (C) and (D) only — Eye irritation during smog episodes is caused by several secondary pollutants formed in photochemical reactions. Peroxyacetyl Nitrate (PAN): Widely recognized…
- A.
(A), (B) and (C) only
- B.
(A), (B) and (D) only
- C.
(C), (D) and (A) only
- D.
(B), (C) and (D) only
Attempted by 22 students.
Show answer & explanation
Correct answer: D
Eye irritation during smog episodes is caused by several secondary pollutants formed in photochemical reactions.
Peroxyacetyl Nitrate (PAN): Widely recognized as a powerful lachrymator (tear-producer) even at extremely low concentrations.
Acrolein: An aldehyde that acts as a strong irritant to the eyes and mucous membranes.
Ozone : A major oxidizing component of photochemical smog that causes oxidative stress and irritation to the ocular surface.
❌ (A) Formaldehyde: While formaldehyde is an irritant found in smog, it is often considered a less dominant factor in the collective "smog eye irritation" phenomenon compared to the combination of PAN, Ozone, and Acrolein in standardized test contexts.