FUNCTIONAL GROUP
Function group is an atom
or
group of atoms in a molecules
that gives the molecules characteristic chemical properties.
Hydrocarbon portion + Functional group
PHYSICAL & CHEMICAL PROPERTIES OF FUNCTIONAL GROUP:
Chemical properties depends on functional group because it takes part in a chemical reaction.
whereas
Physical properties depends on remaining part of the molecule (alkyl group)
e.g. boiling point of ethyl is greater than methyl due to the large molecule size(ethyl).
Common Functional groups Representation with Examples
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