Question

Why NF3 a much weaker base than NH3

Answer 1

due to the much weaker bonds of nf3

Answer 2

Answer:

Explanation:this is due to the 3 F atoms in NF3 attracts the lone pair of electrons in N and hence it becomes difficult for N to loose that pair of electrons, and therefore acts as a weak base. But in NH3, Hydrogen is less electronegative then Fluorine, and has less tendency to attract shared pair of electrons.