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NEET levelSingle correct optionDifficulty 1 of 3cb057

The nitrogen atom in $NH X_{4} X^{+}$ is hybridised as

A $s p$
B $s p^{3}$
C $s p^{2}$
D $s p^{3} d$

Answer: B

Nitrogen forms four sigma bonds and has no lone pair, so four hybrid orbitals are needed. One s and three p orbitals mix to give

s p^{3}

, and the ion is tetrahedral.

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