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Question
Which of the following amino acids is not optically active?
Which of the following amino acids is not optically active?
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Solution
The correct option is A Glycine
Amino acid, glycine has -H atom as its -R group. Therefore glycine does not have a chirality, that is it is superimposable on its mirror image. Therefore glycine does not have the ability to rotate plane polarized light or in other words glycine is not optically active.
All other amino acids are optically active and they rotate plane polarized light, due to the presence of a chiral center, the alpha-carbon atom.
Amino acid, glycine has -H atom as its -R group. Therefore glycine does not have a chirality, that is it is superimposable on its mirror image. Therefore glycine does not have the ability to rotate plane polarized light or in other words glycine is not optically active.
All other amino acids are optically active and they rotate plane polarized light, due to the presence of a chiral center, the alpha-carbon atom.
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