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How are methyl and ethyl groups formed from alkanes?
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hydrocarbon
Structures assumed by hydrogen (H) and carbon (C) molecules in four common hydrocarbon compounds.
Methyl and ethyl groups are classified as alkyl groups, which are structural units derived from alkanes.
An alkyl group is formed by the removal of one hydrogen atom from an alkane molecule, which creates a potential point of attachment for the group to bond with the remainder of a molecule. Specifically:1
- Methyl group (CH₃): This is the only alkyl group that can be derived from methane (CH₄) by removing one of its four hydrogen atoms.1
- Ethyl group (CH₃CH₂): This is the only alkyl group derived from ethane (CH₃CH₃) by removing one of its hydrogen atoms.12
Once formed, these groups act as substituents when attached to a parent carbon chain in more complex organic compounds.1