Among the following L-serine is

Step-by-step solution

The laevorotatory isomer of 2-amino-3-hydroxypropanoic acid A rule of thumb for determining D / L isomeric form of an amino acid is the corn rule. The groups: COOH , R, NH ₂ and H (where R is an unnamed carbon chain) are arranged around the chiral center carbon atom. Sighting from the hydrogen atom, if these groups are arranged counterclockwise around the carbon atom, then it is the D-form. If clockwise, it is the L-form. According to priority order : - NH ₂,- COOH ,- CH ₂ OH ,- H .