Question

In aqueous solution amino acids are rarely found in the neutral, unionized form.

a. True
b. False

Answer 1

a. True.

There is always an equilibrium of the type

NH₃⁺CHRCOOH ⇌ NH₃⁺CHRCOO⁻ ⇌ NH₂CHRCOO⁻

The compound is always in an ionized form.

There are no unionized NH₂CHRCOOH molecules in the solution.