• question_answer Which of the following is an electrophile [J & K 2005] A) ${{H}_{2}}O$ B) $S{{O}_{3}}$ C) $N{{H}_{3}}$ D) $ROR$

$H-\overset{\bullet \,\,\bullet }{\mathop{\underset{\bullet \,\,\bullet }{\mathop{O}}\,}}\,-H,\,\,:N{{H}_{3}},\,\,R-\overset{\bullet \,\,\bullet }{\mathop{\underset{\bullet \,\,\bullet }{\mathop{O}}\,}}\,-R$- nucleophiles $S{{O}_{3}}$ has electron deficient centre (a reagent which can accept an electron pair in a reaction, is called an electrophile)