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Question

A catalytic converter helps in the control of ___.
  1. 280 ppm to 360 ppm

  2. 250 ppm to 300 ppm

  3. 300 ppm to 340 ppm

  4. 330 ppm to 350 ppm


Solution

The correct option is C

300 ppm to 340 ppm


In order to reduce air pollution, modern automobiles are equipped with a device called catalytic converter that reduces the emission of three harmful compounds found in car exhaust - carbon monoxide (a poisonous gas), nitrogen oxides (a cause of smog and acid rain) and hydrocarbons (a cause of smog).

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