Question

mention the functional groups present in . 1) glycine 2) salicylic acid

Answer 1

Glycerol, or glycerine, is a tri-alcohol or polyol in that it has three hydroxyl (OH) . Salicylic acid contains two functional groups, a carboxylic acid (-COOH) 

Answer 2

Functional group is a group of atoms which are main responsible for the chemical characteristics of any particular chemical compound.

The functional groups of every individual compounds are completely different.

Functional groups of following compounds are:

1) glycine:three hydroxyl groups.

2) salicylic acid:a COOH group.