P^(K_(a)) of O_(2)N-CH_(2)COOH is 1.68. How many compounds given below have a pKa value greater than 1.68 ""underset((I))(CH_(3)COOH)""underset((II))(Cl-CH_(2)COOH)""underset((III))(Cl-underset(underset(Cl)(|))overset(overset(Cl)(|))(C)-COOH)""underset((IV))(O_(2)N-CH_(2)CH_(2)COOH) ""underset((V))(H_(3)C-overset(overset(O)(||))(C)-COOH)""(##AKS_ELT_AO_CHE_XI_V01_D_C03_E02_029_Q01.png" width="80%">

P^(K_(a)) of O_(2)N-CH_(2)COOH is 1.68. How many compounds given below

1.	P^(K_(a)) of O_(2)N-CH_(2)COOH is 1.68. How many compounds given below have a pKa value greater than 1.68 ""underset((I))(CH_(3)COOH)""underset((II))(Cl-CH_(2)COOH)""underset((III))(Cl-underset(underset(Cl)(\|))overset(overset(Cl)(\|))(C)-COOH)""underset((IV))(O_(2)N-CH_(2)CH_(2)COOH) ""underset((V))(H_(3)C-overset(overset(O)(\|\|))(C)-COOH)""(##AKS_ELT_AO_CHE_XI_V01_D_C03_E02_029_Q01.png" width="80%">
Answer» SOLUTION :Excep `CCl_3 - COOH`all other FIVE compounds are w.r than NITRO ACETIC ACID