Among the following the achiral amino acid is:

Options

A. 2 - ethyalanine
B. 2 - methylgycine
C. 2- hydroxymethyl serine
D. Tryptophan.

Answer

C

Explanation

2-ethylalanine , `H_5C_2-undersetoverset(|)(CH_3)oversetunderset(|)(NH_2)C-COOH` (chiral)
2-methylglycine , `CH_3-undersetoverset(|)(H)oversetunderset(|)(NH_2)C-COOH` (chiral)
2-hydroxymethylserine , `HOCH_2-undersetoverset(|)(CH_2OH)oversetunderset(|)(NH_2)C-COOH` (achiral)