The nucleophilic attack on olefins under mild conditions:
(a)Is always facile
(b)Is more facile than electrophilic attack on olefins
(c)Is facile for electron-rich olefins
(d)Requires activation by coordination to metal.
Answer
Answer: D ✓ checked by 4AB · confidence high
The source book printed C; on checking, D is correct — see the explanation.
Printed C; electron-rich olefins are attacked by electrophiles, not nucleophiles.
Explanation
Free olefins are electron-rich and resist nucleophiles; coordination to an electrophilic metal (Pd(II), Pt(II), Hg(II)) withdraws electron density and makes nucleophilic attack (e.g. Wacker) facile.