Which of the following is the least basic?

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(D) The basicity of nitrogen trihalides $(NX_3)$ depends on the availability of the lone pair of electrons on the nitrogen atom. In $NF_3$,the fluorin

Vedclass · Accepted Answer

$NF_3$

Vedclass · Answer

(D) The basicity of nitrogen trihalides $(NX_3)$ depends on the availability of the lone pair of electrons on the nitrogen atom. In $NF_3$,the fluorine atom is highly electronegative. It exerts a strong $-I$ effect,which pulls the electron density away from the nitrogen atom towards itself. This significantly reduces the availability of the lone pair on the nitrogen atom,making $NF_3$ the least basic among the nitrogen trihalides. Therefore,the correct option is $D$.

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