Q.

The irritating red haze in traffic and in congested places is due to

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a

oxides of sulphur

b

oxides of nitrogen

c

oxides of carbon

d

hydrocarbons

answer is B.

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Detailed Solution

NO and, NO2 gases are produced by the reaction of O2 and N2. When fossil fuels burn in automobiles. NO2 is brown in colour.
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