Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion : All naturally occurring a-aminoacids except glycine are optically active.
Reason : Most naturally occurring amino acids have L-configuration.
All naturally occurring α-amino acids except glycine are optically active. This is because glycine does not have all four different substituent which means that the carbon atom is achiral.
Glycine