An unknown hydrocarbon was

[image]

tested with Bromine water.

The result is shown.

What class of hydrocarbon

produced this result?

Alkane.

Remember: Alkanes do NOT decolourise Br₂ water in dark. They need UV radiation to undergo a substitution reaction.

What is the name given to the process of breaking long-chain hydrocarbon molecules into smaller chains?

Cracking

Name the TWO main types of 'Cracking' and provide a short description of each.

 [image]

Name the catalyst used in catalytic cracking a describe its properties.

An Aluminium silicate zeolite is used. This catalysts;

* Is extremely porous                    * The cavities create

                                              LARGE SA for reaction sites

* Lower temps are needed[image]