Polymer

The diagram shows a molecule of an organic compound W.

• A solution of W in water has a pH greater than pH 7.

• A solution of W in water reacts with sodium hydroxide solution.

• When copper(II) carbonate is added to a solution of W in water, a gas is produced.

• When magnesium is added to a solution of W in water, a gas is produced.

Which row describes the formation of a polymer?

• A

• B

• C

• D

Which process does not produce carbon dioxide?

• combustion of methane

• fermentation of sugar

• polymerisation of ethene

• respiration

The diagram shows three repeat units in the structure of an addition polymer.

• 
• 
• 
• 

A macromolecule is a very large molecule.

Macromolecules can be made by joining smaller molecules together. This is called

polymerisation.

Which row in the table describes the formation of a polymer?

• A

• B

• C

• D

The diagram shows the separation of petroleum into fractions.

• A

• B

• C

• D

What is not the correct use for the fraction named?

• A

• B

• C

• D

Which row shows the correct use of a fraction obtained by the fractional distillation of petroleum?

• A

• B

• C

• D

Which statement about petroleum is not correct?

• It can be separated into useful substances by fractional distillation.

• It consists mainly of hydrocarbons.

• It is found underground in many parts of the world.

• Its main use is for making lubricants and polishes.

Which statement about petroleum is not correct?

• It can be separated into useful substances by fractional distillation.

• It consists mainly of hydrocarbons.

• It is found underground in many parts of the world.

• Its main use is for making lubricants and polishes.