The various pollutants produced by the burning of petrol are carbon monoxide, unburnt hydrocarbons, some alcohols and acids, and lead compounds. Petrol is a mixture of liquid hydrocarbons. In an engine, it burns very fast. But, the burning does not take place completely. Petrol burns to produce mainly carbon dioxide and water vapour. But, due to its incomplete burning some carbon monoxide, unburnt hydrocarbons, etc., are also produced. Carbon monoxide and other undesirable gases go into the atmosphere and pollute it.
Which of the following are correct : (a) The pollutants produced by the burning of petrol are carbon monoxide, unburnt hydrocarbons,etc. (b) Petrol is a mixture of liquid hydrocarbons. (c) Nitrogen dioxide is a poisonous gas. | |||
Right Option : D | |||
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The various pollutants produced by the burning of petrol are ______________________. | |||
Right Option : D | |||
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Which of the following air pollutants reduces the oxygen - carrying capacity of blood ? | |||
Right Option : B | |||
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