14 - Organic chemistry (Alkanes and alkenes) Flashcards
1
Q
Name the products of complete combustion of an alkane.
A
Carbon dioxide and water.
2
Q
Name the products of incomplete combustion of an alkane.
A
Carbon monoxide and water.
or
Carbon and water.
3
Q
What is alkane halogenation?
A
A halogen replacing a hydrogen atom in the presence of UV, forming a haloalkane.
4
Q
Describe the process of cracking.
A
Thermal decomposition reaction.
Cracking of alkane forms an alkene + hydrogen (in some cases)
5
Q
State the products of the cracking of ethane.
A
Ethene + hydrogen
6
Q
State the properties of saturated hydrocarbons.
A
No double bonds.
Do not react with aqueous halogens. (no change in color)
7
Q
State the properties of unsaturated hydrocarbons.
A
Double bonds
Reacts with aqueous halogens. (color change to colorless)
