Alkanes are a form of hydrocarbons.

They all have the general formula of CnH2n+2

Different Alkanes make up normal Crude oil.

They are used as fuels becaues they burn easily.

Some Alkanes have isomers (all except methane, ethane and propane)

List of Alkanes[edit | edit source]

CH4: Methane

C2H6: Ethane

C3H8: Propane

C4H10: Butane

C5H12: Pentane

Structure[edit | edit source]


Structural Fomula: CH4

Diagram: Methane.jpg


Structural Formula: CH3-CH3

Diagram: Ethane.jpg


Structural Formula: CH3-CH2-CH3

Diagram: PROPANE.jpg


Structural Formula: CH3-CH2-CH2-CH3

Diagram: Butane.jpg

Reactions[edit | edit source]

Substitution with Halogens[edit | edit source]

Alkanes react with halogens to form compounds such as chloromethane.

CH4 + Cl2 --> CH3Cl +HCl

This reaction must be carried out in sunlight or UV light.

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