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Amino acids exist in Zwitter ion form. W...

Amino acids exist in Zwitter ion form. What is the structure of glycine at pH = 4?

A

`H_3N^(o+)-CH_2-COO^-`

B

`H_3N^(o+)-CH_2-COOH`

C

`H_2N - CH_2- COOH`

D

`H_2N - CH_2-COO^-`

Text Solution

Verified by Experts

The correct Answer is:
A
`underset(.^(o+)NH_3)underset|(CH_2)-COO^(-) hArr undersetunderset(NH_2)|CH_2-COOH`
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