A group (also known as a family) is a vertical column in the periodic table of elements.

The alkali metals – Group I

• Very reactive soft metals.
• Increases in reactivity down the group.
• They have low densities.
• They react... (More)

Organic chemistry is the chemistry of carbon containing compounds.

A hydrocarbon is a substance that contains only carbon and hydrogen.

There are three main hydrocarbons on the course – alkanes, alkenes and alkynes.

A homologous series is... (More)

Tetrahedral carbon compounds

In saturated organic compounds, all of the carbon atoms are tetrahedral.

Chloroalkanes

• A chloroalkane is an alkane in which one or more hydrogen atoms are replaced with chlorine atoms.
• Chloroform (

• ) is an example... (More)

Ethyne gas is prepared by the reaction of water with calcium carbide (CaC2). Ethyne gas is a colourless gas.

Main Chemicals required

• Calcium Carbide (CaC2) [also known as calcium dicarbide] – A white/gray solid
• Acidified copper (II) sulfate... (More)