Question

question 23
which functional group can act as a base?
amino
phosphate
hydroxyl
carboxyl
methyl

Explanation:

Amino groups can accept a proton (H⁺) due to the lone - pair of electrons on the nitrogen atom, which is a characteristic of a base. Phosphate groups are often involved in energy - related and acidic functions. Hydroxyl groups can be involved in hydrogen - bonding but are not typically basic in the context of organic functional groups. Carboxyl groups are acidic as they can donate a proton. Methyl groups are non - polar and have no basic properties.

Answer:

A. amino