Two components of automobile exhausts, which can interact to produce secondary pollutants are

Carbon monoxide and nitrogen oxides

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Nitrogen oxides and hydrocarbons

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Carbon dioxide and sulphur dioxide

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Sulphur and nitrogen oxides

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Solution

The correct option is C Nitrogen oxides and hydrocarbons
The primary pollutants are directly released from the source like hydrocarbons are released when fossil fuels are burnt and nitrogen oxides are released due to vehicular combustion and also fossil fuel burning. When these primary pollutants react with each other they form a more potent secondary pollutant called the ozone, which is a poisonous gas in the troposphere.
Hence, the correct answer is 'Nitrogen oxides and hydrocarbons'

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