Q7 of 50 Page 176

Which of the following statements about photochemical smog is wrong?

Photochemical smog is a haze in the atmosphere accompanied by high levels of ozone and nitrogen oxides, caused by the action of sunlight on pollutants.

Here components of it have a high concentration of oxidising agents. Moreover, pinus release various volatile organic gases which get reacted with components of photochemical smog and reduces the ambient concentration of ozone, NO2, hydrocarbon, etc.

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The gaseous envelope around the earth is known as the atmosphere. The lowest layer of this is extended up to 10 km from sea level, this layer is _________.

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Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because of _________.