CBSE Class 11-science Answered

Yes, alkyl groups are one of the functional groups. They are represented by the symbol 'R'.

 

 

In organic chemistry, functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. The same functional group will undergo the same or similar chemical reaction(s) regardless of the size of the molecule it is a part of. If we replaced the H-atoms in ethene with CH3 groups, that would be a methyl group. Functional groups are attached to the carbon backbone of organic molecules. They determine the characteristics and chemical reactivity of molecules. Functional groups are far less stable than the carbon backbone and are likely to participate in chemical reactions. Six common biological functional groups are hydrogen, hydroxyl, carboxyl, carbonyl, amino, phosphate, and methyl.

 

 

• e.g. C=C alkene, C-OH alcohol or -COOH carboxylic acid etc.

• A functional group is an atom or combination of atoms which gives an organic molecule its distinctive and characteristic chemistry.

• The term 'functional' group is linked to the concept of a homologous series.

• A homologous series is a group of molecules with the same general formula and the same functional group.

• They have similar physical and chemical properties such as appearance, melting/boiling points, solubility etc