Fractional Distillation

Question 1

Crude oil is currently the world’s main source of

Answer 1

organic chemicals

Question 2

As a mixture, it isn’t a very useful substance, but the different hydrocarbons that make up the mixture, called …………….., are useful, with each fraction having different ………………

Answer 2

fractions

applications

Question 3

Crude oil a mixture of mostly

Answer 3

of mostly alkanes, unbranched and branched chain

Question 4

The mixture is separated into fractions, based on

Answer 4

boiling points

Question 5

Each fraction consists of groups of hydrocarbons of

Answer 5

of similar chain lengths
Hydrocarbons of similar chain length have similar boiling points

Question 6

The fractions are separated from each other in a process called

Answer 6

fractional distillation

Question 7

The size and length of each hydrocarbon molecule determines in which …………it will be separated into

The size of each molecule is directly related to how many carbon and hydrogen atoms the molecule contains

Most fractions contain mainly alkanes, which are compounds of carbon and hydrogen with only single bonds between them

Answer 7

fraction