Q. Which of the following exists as Zwitter ion?
A) p-aminophenol
B) Salicylic acid
C) Sulphanilic acid
D) Ethanolamine
Explanation
(c)
Sulphalilic acid exists as Zwitter ion.
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It exists as a dipolar ion, which has acidic and basic groups in the same molecule.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.