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Write the structure of serine at PH = 1 ...

Write the structure of serine at PH = 1 & PH =11

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Serine exists as zwitterion at neutral pH. In pH = 1, `-COO^(Θ)` accepts a proton to give cation (I) and at pH = 11, `-overset(oplus)(N)H_(3)` donating a proton to the base exists as an anion (II)
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