Substances with the general formula CnH2n belong to the class.

Substances with the general formula СnH2n belong to the class of alkenes and cycloalkanes.

For example: n = 2, then we get C2H4 – ethene or ethylene. Ending “- en”

C3H6 is propene, C4H8 is butene, C5H10 is pentene, C6H12 is hexene, C7H14 is heptene, C8H16 is octene, C9H18 is nonene, C10H20 is decene.



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