Carboxylic acids containing an amino group `(-NH_(2))` as a substituent are called amino acids. When this amino group substitution is at `alpha` position with respect to carboxylic group, the aminoacid is called `alpha`-amino acid. The aminoacids with two carboxylic acids are called acidic amino acids whereas aminoacids with two amino group are called basic amino acids Amino acids show amphoteric character. Ali chiral natural amino acids exist in L-form. :
What would be the net charge on the given amino acid at pH=14?

Options

A. `+1`
B. `+2`
C. `-1`
D. `-2`

Answer

D