Alanine forms `Z` witter ion which exists as

Options

A. `CH_(3)underset(.^o+NH_(3))underset(|)(CHCOO^(-))` in acidic medium
B. `CH_(3)underset(.^o+NH_(3))underset(|)(CH)COOH` in a medium of `pH = 4`
C. `CH_(3)underset(NH_(2))underset(|)(CH)COO^(Theta)` in a medium of `pH = 2`
D. `CH_(3)underset(NH_(2))underset(|)(CH)COO^(Theta)` in a medium of `pH = 2`

Answer

b

Explanation

`CH_(3)underset(NH_(2))underset(|)(C)CHCOOH hArr underset("Zwitter ion")underset(.^(o+NH_(3)))underset(|)(CH_(3)CHCOO^(Theta)) overset(H^(+))underset("acidic")rarr underset(.^(o+NH_(3)))underset(|)(CH_(3)CHCOOH)`
`{:(or pH=4),(or pH=1),(or pH=2):}`