The acidic oxide of nitrogen primarily formed in car engines is nitrogen dioxide (NO2). It is a product of the combustion process where nitrogen and oxygen from the air react at high temperatures. Other nitrogen oxides, like nitric oxide (NO), are also produced, but NO2 is of particular concern due to its acidic properties and its role in forming smog and contributing to air pollution and respiratory problems.
Acidic oxide of nitrogen formed in car engins
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