Supreme Court has recently suggested installation of catalytic convertors in all diesel vehicles. The catalytic converter will help to reduce:

  1. Carbon monoxide (CO)
  2. Carbon dioxide (CO2)
  3. Nitrogen oxides (NOx)
  4. Sulphur dioxide (SO2)
  5. Hydrocarbons (HC)

Select the correct option from codes given below:

Answer: [D] Only 1, 3 & 5

In order to reduce air pollution, Supreme Court suggested installation of catalytic convertor in diesel vehicles. The device will help to reduce:

  • Carbon monoxide (a poisonous gas);
  • Nitrogen oxides (a cause of smog and acid rain); &
  • Hydrocarbons (a cause of smog)

These are converted into less harmful compounds before leaving the car’s exhaust system. This is accomplished using a catalyst, which gives the device its name. The catalyst used in a catalytic converter is a combination of platinum (Pt), palladium (Pd), and rhodium (Rh).

This question is a part of GKToday's Integrated IAS General Studies Module