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Hydrocarbon Classification

Aliphatics: open chains

1. alkanes ("paraffins"): contain only carbon-carbon single bonds (are saturated). General formula: CH.

2. alkenes ("olefins"): contain a single carbon-carbon double bond. General formula: CH.

3. alkynes: contain a single carbon-carbon triple bond. General formula: CH.
Cycloaliphatics: closed chains

1. cycloalkanes: general formula: CH.
Aromatics: contain benzene rings and their

.derivatives.