P-Block Elements Ques 497
Question: The smog is essentially caused by the presence of
[AIEEE 2004]
Options:
A) Oxides of sulphur and nitrogen
B) $ O_2 $ and $ N_2 $
C) $ O_2 $ and $ O_3 $
D) $ O_3 $ and $ N_2 $
Show Answer
Answer:
Correct Answer: A
Solution:
Photochemical smog is caused by oxides of sulphur and nitrogen.