Alkyl Group
( \newcommand{\kernel}{\mathrm{null}\,}\)
An alkyl group (symbol: R) is the fragment, containing a vacant point of attachment, that would form if a hydrogen atom were removed from the molecule of an alkane.
eg. 1:
eg. 2:
eg. 3:
eg. 4:
Organic chemists casually refer to a fragment derived by removing a hydrogen atom from an sp³-hybridized carbon atom in the molecule of any hydrocarbon as alkyl group.
eg: