Which of the following is a nucleophile ?

Options

A. `BH_(3)`
B. `NH_(3)`
C. `AlCl_(3)`
D. All of these

Answer

B

Explanation

Nucleophiles (ie, nucleus loving are the species that have atleast one lone pair of electrons for donation, ie, they can also be called Lewis bases . Among the given, `BH_(3)` and `AlCl_(3)` , being electron dificient , behave like electrophiles while `overset(..)(N) H_(3)`, due to the presence of a lone pair over N, is a nucleophile.