Which of the following is correct for Zwitter ion?

Options

A. The carboxyl group can lose a proton and amino group can accept a proton in the aqueous solution which give rise to a dipolar ion.
B. The carboxyl group can accept a proton and amino group can lose a proton in aqueous solution which give nse to a dipolar ion.
C. The amino group can accept a proton and ester group can lose a proton in aqueous solution which give rise to dipolar ion.
D. The amino group can lose a proton in aqueous solution and ester group can accept a proton in aqueous solution which give rise to the dipolar ion.

Answer

A

Explanation

In aqueous solution, the carboxyl group can lose a proton and amino group can accept a proton, giving rise to a dipolar ion known as Zwitter ion. This is neutral but contains both positive and negative charges.