The preferred sites of protonation in the following compounds are (I) Ph-CH_(2)-overset(1)overset(NH)overset(||)C-overset(2)overset(NH_(2))""(II)Ph-CH_(2)-overset(3)overset(O)overset(||)C-overset(4)(N)H_(2)

The preferred sites of protonation in the following compounds are (I)

1.	The preferred sites of protonation in the following compounds are (I) Ph-CH_(2)-overset(1)overset(NH)overset(\|\|)C-overset(2)overset(NH_(2))""(II)Ph-CH_(2)-overset(3)overset(O)overset(\|\|)C-overset(4)(N)H_(2)
Answer» 1 and 3 2 and 4 1 and 4 2 and 3 Solution :PROTONATION at site 1 and 3 is SUPPORTED by RESONANCE stabilization.