Q. Which of the following is not a nucleophile?
A) $BF_{3}$
B) $NH_{3}$
C) $CN^{-}$
D) $OH^{-}$
Explanation
(a)
Electron donors having lone pair of electrons are nucleophile.
(i) $BF_{3}$is not nucleophile because it does not have lone pair of electrons. It is infact Lewis acid because it accepts pair of electron
$(ii)NH_{3},CN^{-}$ and $OH^{-}$all have lone pair of electrons, so they are nucleophiles.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.