Coal and Petroleum

Coal and petrolem are called……………..fuels.

Petroleum is a mixture of groups of compounds such as bitumen, diesel and petroleum gas

Existence of coal or petroleum can be known from the study of :

Coal gas .

Which one is equivalent to petroleum hydrocarbons?

What do you understand by cracking ? What is its significance in petroleum industry?

Diatomaceous earth is often accompanied by (a) reserved carbohydrates (b) deposits of stones (c) petroleum fields (d) deposits of coal

Petroleum ether obtained on fractionation of petroleum contains pentane, hexane and heptane. State whether the statement is true or not.

Which one contains hydrocarbbons similar to those of petroleum?