AP EAMCET Engineering 2011 Solved Paper

Section: Chemistry

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Question : 49 of 160

Marks: +1, -0

Which one of the following statements is not correct?

Except glycine all other naturally occurring α -amino acids are optically active
α -amino acids have maximum solubility at their isoelectric point
A tripeptide has two peptide bonds
α -amino acids exist as Zwitter ions

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