Knockout JEE Main April 2021 (One Month)
An exhaustive E-learning program for the complete preparation of JEE Main..
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factual Based
is the main constituent to prepare PAN(peroxy actual Nitrate ) that is main component of photochemical smog.
Option 1)
acrolein
Option 2)nitrogen oxides
Option 3)ozone
Option 4)sulphur dioxide