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| 1. |
Glycine exists as (H_3N+ CH_2COO-) while anthranilic acid (P-NH_2-C_6H_4-COOH) does not exist as dipolar ion. |
| Answer» Solution :`-COOH` is too weakly acidic to TRANSFER `H^+` to the weakly basic `-NH_2` attached to the electron withdrawing benzene ring. When attached to an aliphatic carbon, the `-NH_2` is sufficiently basic ACCEPT `H^+` from `-COOH` group. | |