JEE MAIN - Chemistry (2012 - No. 9)
Which one of the following statements is correct ?
All amino acids except lysine are optically active
All amino acids are optically active
All amino acids except glycine are optically active
All amino acids except glutamic acid are optically active
解释
With the exception of glycine all the $$19$$ other common amino acids have a uniquely different functional group on the central tetrahedral alpha carbon.
