Chemistry
Grade-6
Easy

Question

________ cars emit more nitrogen oxides than petrol cars

  1. Hybrid
  2. Diesel
  3. Electric
  4. CNG

hintHint:

It is cheaper than petrol and is in liquid form.

The correct answer is: Diesel


    Desiel cars emit more nitrogen oxides than petrol cars
    A diesel engine runs at higher temperatures and pressures than a gasoline engine. These conditions favor the production of NO gas. A diesel engine emits less CO2 and greenhouse gases than a gasoline engine. This is due to the special type of fuel and the internal efficiency of diesel engines. More specifically, the fuel used in diesel engines has a higher compression ratio than gasoline and is more powerful than gasoline engines.

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