P-Block Elements Ques 267

Question: Which nitrogen trihalides is least basic

[IIT 1987; Kurukshetra CEE 1998; CPMT 1999]

Options:

A) $ NF_3 $

B) $ NCl_3 $

C) $ NBr_3 $

D) $ NI_3 $

Show Answer

Answer:

Correct Answer: A

Solution:

$ NF_3 $ It is least basic because of the high electronegativity of $ 3F $ atoms. The lone pair present on nitrogen atom is not easily available for donation.



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