Q.B. Electrophile and nucleophile

Reagents driving polar organic reactions are classified by whether they accept or donate electrons. An electrophile (E⊕, 'electron-loving') carries an electron-deficient electrophilic centre and seeks/accepts electrons from a substrate -- examples include a positively charged ion (Br⊕, CH3⊕) or a neutral species with a vacant orbital (AlCl3); it attacks a nucleophilic centre in the substrate. A nucleophile (Nu:, 'nucleus-seeking') carries an electron-rich nucleophilic centre (t …