1.

For \[\alpha -\]amino acids having the structure                 \[R-\underset{N{{H}_{2}}\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,}{\mathop{CH-}}\,}}\,C{{O}_{2}}H\]                 Which of the following statements are true                                 Water solubility is maximum at a pH when concentrations of anions and cations are equal                                 They give ninhydrin test                                               On reacting with nitrous acid give off \[{{N}_{2}}\] [MP PET 1994]

A.                 All          
B.                 B and C
C.                 A and B
D.                 A
Answer» C.                 A and B


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