Pka 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)""

Pka of O_(2)N-CH_(2)COOH is 1.68. How many compounds given below have

1.	Pka 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)""
Answer» ANSWER :5