Final answer:
The functional groups in the given molecules can be classified as basic or acidic.
Step-by-step explanation:
The acidity or basicity of a molecule is determined by the presence of certain functional groups. In this case:
A) OH: The hydroxyl group (OH) is basic.
B) CH₃: The methyl group (CH₃) is neither acidic nor basic.
C) CH: The hydrogen atom in the methyl group (CH) is neither acidic nor basic.
D) NH: The amine group (NH) is basic.
E) НАС: The carboxyl group НАС is acidic.
Therefore, the functional groups in the given molecules can be classified as basic (OH and NH) or acidic (НАС).