(a) What is an alkyl group?
(b) Give the names of any three alkyl groups. How are they formed?
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An alkyl group is the group that lacks one of the hydrogen atoms of an alkane.
The names of three alkyl groups are methyl (−CH3), ethyl (−C2H5) and butyl (−C4H9). They are formed by the removal of one hydrogen atom each from methane (CH4), ethane (C2H6) and butane (C4H10) respectively.