Explain why NCl₃ gets easily hydrolysed but NF₃ does not.

When we look at the electronic configurations of Nitrogen, Flourine and chlorine, we see that only chlorine has a vacant d orbital.

N : [He] 2s² 2p³

F : [He] 2s² 2p⁵

Cl : [Ne] 3s² 3p⁵

Ne : [He] 2s² 2p⁶

He :1s²

Due, to the presence of the vacant d orbital, Cl can easily accommodate the electrons during the hydrolysis of NCl₃ which NF₃ cannot do. So, NCl₃ gets hydrolysed easily.