837Chemical EngineeringMedium
Photochemical smog is formed from automobile exhaust ________?
ABy reaction of hydrocarbon & nitric oxide in presence of sunlight
BAll A., B. & C.
CIs harmful for crops and trees also besides causing eye irritation & asthma
DAppears only on sunny days
Correct answer
B. All A., B. & C.
Explanation
The correct answer is All A., B. & C..