Which of the following will not exist in zwitter ionic form at pH =7 ?




                
                  As we learned
Zwitter ion -
A molecule with dipolar ends ( an acidic end and a basic end )
- wherein
In aqueous solution,
 and 
 group undergo ionization
 accepts 
 and becomes 
 and 
 losses 
 and becomes 
The N atom of amide is not basic.
Option 1)

Option 2)

Option 3)

Option 4)

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