(A) Classical smog occurs in a cold and humid climate. It is a mixture of smoke,fog,and $SO_2$. It contains compounds of a reducing nature. Option $A$

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Its main components are produced by the action of sunlight on emissions of automobiles and factories

(A) Classical smog occurs in a cold and humid climate. It is a mixture of smoke,fog,and $SO_2$. It contains compounds of a reducing nature. Option $A$ describes photochemical smog,which is produced by the action of sunlight on nitrogen oxides and hydrocarbons emitted by automobiles and factories.

Class 11 Chemistry Environmental Chemistry Environmental Study

Which of the following statements is not true about classical smog?

A
Its main components are produced by the action of sunlight on emissions of automobiles and factories
B
Produced in cold and humid climate
C
It contains compounds of reducing nature
D
It contains smoke,fog and sulphur dioxide