Question

Refining of petroleum is done by_________( fractional distillation / rapid combustion)​

Answer 1

Answer:

fractional distillation is the correct answer

Answer 2

Answer:

${ \huge {\underline {\underline {\mathtt {\blue{Fractional \: distillation}}}}}}$

Explanation:

Fractional distillation is a method for separating liquids with different boiling points. For example, liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. ... When the mixture is heated, one liquid evaporates before the other.