STANDARDChemistry-Amino Acids
STANDARD Chemistry Zwitterions MCQ Question
Type: MCQ-conceptual-Medium
Many organic substances are negatively charged e.g., acetic acid, while others are positively charged e.g., ammonium ion. An amino acid under certain conditions would have both positive and negative charges simultaneously in the same molecule. Such a form of amino acid is called
A
Positively charged form
B
Negatively charged form
C
Neutral form
D
Zwitterionic form
Correct Answer
Option D
Detailed Explanation
An amino acid in its zwitterionic form has both positive and negative charges, which allows it to exist in a neutral state overall. This occurs when the amino group is protonated and the carboxyl group is deprotonated.
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