Products from oil

Question 1

Cracking

Answer 1

The reaction used in oil industry to break down large hydrocarbons into smaller, more useful ones. This occurs when the hydrocarbon vapour is either passed over a hot catalyst or mixed with steam and heated to a high temperature.

Question 2

Alkene

Answer 2

Unsaturated hydrocarbon which contains a carbon-carbon double bond. The general formula is C2H2 for example Ethene.

Question 3

Unsaturated hydrocarbon

Answer 3

A hydrocarbon whose molecules contain at least one carbon-carbon double bond.

Question 4

Double-bond

Answer 4

A covenant bond made by the sharing of two pairs of electrons.

Question 5

Polymer

Answer 5

A substance made from very large molecules made up of many repeating units, for example, poly(ethene)

Question 6

Monomer

Answer 6

Small reactive Molecules that react together in repeating sequences to form a very large molecule (a polymer).

Question 7

Polymerisation

Answer 7

The reaction of monomers to make a polymer.

Question 8

Ethene

Answer 8

An alkene

Question 9

Propene

Answer 9

An alkene

Question 10

Smart polymer

Answer 10

Polymers that change in response to changes in their environment.

Question 11

Biodegradable

Answer 11

Materials that can be broken down by microorganisms.

Question 12

Fermentation

Answer 12

The reaction in which the enzymes in yeast turn glucose into ethanol and carbon dioxide.