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What is a Cycloalkane?

Cycloalkanes form an homologous series
with the general formula CnH2n.
This is the same general formula as the alkenes.

Cycloalkanes are saturated hydrocarbons which form
ring compounds. Although they are called rings,
their shape follows the number of carbon atoms in the ring.
Cyclopropane (three carbons) is a triangle.
Cyclohexane (six carbons) is a hexagon.

Below are links to the structural formulae of cycloalkanes.

Cyclopropane              Cyclobutane

 Cyclopentane                    Cyclohexane

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