Petrol and diesel are obtained from:
Fuels like coal, petrol, diesel and natural gas are burnt, ___________ gas is released in large volumes.
The heat energy obtained on burning 2 kg of hydrogen, coal, and petrol are given below:
Hydrogen- 3×108 J
Coal- 6×107 J
Petrol- 9×107 J
Arrange these fuels in the ascending order of their calorific values.
Which process is used to obtain petrol, kerosene and diesel from crude oil?