Electrophilies are electron seeking species. Which of the following groups contain only electrophilies?

Electrophilies are electron seeking species. Which of the following gr

1.	Electrophilies are electron seeking species. Which of the following groups contain only electrophilies?
Answer» `BF_(3), NH_(3), H_(2)O` `AlCl_(3), SO_(3), NO_(2)^(+)` `NO_(2)^(+), CH_(3)^(+), CH_(3)-C^(+) = O` `C_(2)H_(5)^(-), overset(.)(C _(2))H_(5), C_(2)H_(5)^(+)` SOLUTION :In (A), `NH_(3) and H_(2)O` are not electrophiles In (D), `C_(2)H_(5)^(-) and overset(.)C_(2) H_(5)` are not electrophiles. All electron in (B) and (C ) are ELECTROPHILIES.