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

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

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Produced in cold and humid climate

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It contains compounds of reducing nature

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It contains smoke, fog and sulphur dioxide

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Solution

The correct option is A Its main components are produced by the action by the action of sunlight on emissions of automobiles and factories
Classical smog is the typical form of smog found in areas which have a humid climate.
It is a mixture of smoke, fog and sulphur dioxide. This smog acts as a reducing agent in atmospheric pollution and hence it is also known as reducing smog.

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