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Which one of the following statements is correct ? (1) All amino acids except lysine are optically active (2) All amino acids are optically active (3) All amino acids except glycine are optically active (4) All amino acids except glutamic acid are optically active

Which one of the following statements is correct ?
(1) All amino acids except lysine are optically active
(2) All amino acids are optically active
(3) All amino acids except glycine are optically active
(4) All amino acids except glutamic acid are optically active

Grade:12

1 Answers

Avinash
askIITians Faculty 1246 Points
5 years ago
(3)Except Glycine (the first member of amino acid series), all the amino acids contain at least one asymmetric carbon atom and hence, they are optically active and can exist in d and l-forms

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