:H H3C 1An electron pair from the nucleophile attacks the electrophilic carbon of the Ketone carbonyl group,pushing an electron pair from the C=O bond onto oxygen and giving an alkoxide :0 anion.The carbonyl carbon rehybridizes from sp2 to sp3. H3C H H3C ②Protonation of the Alkoxide ion alkoxide anion resulting from nucleophilic addition yields the ②Hg0t neutral alcohol addition product. H3C 7 H + H20 H3C Alcohol 2007 Thomson Higher Education