JEE Main Chemistry question

[K CET 2010] In alkaline medium, alanine exists predominantly as

(A)AnionCorrect
(B)Zwitter ion
(C)Cation
(D)Covalent form

Answer: (A)

Solution

In a basic (alkaline) medium, excess hydroxide deprotonates the ammonium group of alanine's zwitterion (), converting it to the fully deprotonated anionic form

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Question ID VK-150689