A nucleophile attacks
- A. a region of high electron density such as a double bond
- B. another nucleophile
- C. an electron deficient carbon atom, donating a lone pair to it
- D. only free radicals
Explanation
Nucleophile means nucleus loving, so these electron rich species, such as hydroxide, cyanide and ammonia, seek out carbon atoms made positive by an attached electronegative group. This is why alkyl halides undergo nucleophilic substitution while alkenes undergo electrophilic addition. Every nucleophile is a Lewis base, since it donates an electron pair.