Point out difference between coal and coke.

Read the following tabular column carefully and decide which fuel we should use for cooking.

What do you understand by the term carbonisation?

Distinguish between petroleum and petrol.

The boiling point of three components A, B & C of petroleum are 120^oC, 70^oC , 250^OC. If a mixture of these three is fractionally distilled, which of these will be obtained at the bottom of distillation column?