Which of the following sets of groups contains only electrophiles ?

1.	Which of the following sets of groups contains only electrophiles ?
Answer» `NH_(2)^(-),NO_(2)^(+),H_(2)O,NH_(3)` `F^(-),OH^(-),NH_(3),SO_(3)` `NO_(2)^(+),AlCl_(3),SO_(3),CH_(3)overset(+)C=O` `NH_(3),BF_(3),AlCl_(3),H_(2)O` Answer :C

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