pBlock ElementsII - Result Question 37
37. Amongst the trihalides of nitrogen, which one is least basic?
(1987,1 M)
(a) $NF _3$
(b) $NCl _3$
(c) $NBr _3$
(d) $NI _3$
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Answer:
Correct Answer: 37. (a)
Solution:
The electron withdrawing inductive effect of halogen decreases electron density on nitrogen, lowers basic strength. Since, fluorine is most electronegative, $NF _3$ is least basic.
BETA
