Simple & Fractional distillation

Question 1

crude oil is

Answer 1

a mixture of hydrocarbons with different chain lengths

Question 2

Fractional distillation is a type of distillation which involves the separation of.

Answer 2

miscible liquids

Question 3

Fractional distillation cannot separate which of the following?
Crude oil
Ethanol + water
Acetone + water

Answer 3

Acetone + water

Question 4

Which of the following will vaporize faster?
Water
Aniline
Kerosene
Chloroform

Answer 4

Chloroform

Question 5

Due to the presence of______ fractional distillation differs from simple distillation

Answer 5

Fractionating column

Question 6

A common example of fractional distillation in industries is the separation of various components of

Answer 6

crude oil

Question 7

The separation of liquid happens when the mixture is heated at a certain temperature where fractions of the mixture start
to

Answer 7

vaporize

Question 8

Fractional distillation mainly depends on

Answer 8

boiling points

Question 9

Longer chained molecules have_____boiling points because they have stronger_________ forces of attraction between________. This means more______is required to break the ________ forces of attraction.

Answer 9

higher, intermolecular, molecules, energy, intermolecular

Question 10

Distillation is

Answer 10

a common method for
purifying liquids and can be used to
determine their boiling points.

Question 11

Simple distillation is used to

Answer 11

to purify liquid mixtures by separating one liquid component either from nonvolatile substances or from another liquid that differs in boiling point by at least 75°C.

Question 12

The closer the boiling points of the components of a liquid mixture the more what ?

Answer 12

the
more difficult they are to completely separate by simple distillation.