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JEE Main levelSingle correct optionDifficulty 2 of 3cb064

Which pair has the same hybridisation for the central atoms of both species?

A $CO X_{2}$ and $SO X_{2}$
B $BF X_{3}$ and $NH X_{3}$
C $NO X_{3} X^{-}$ and $ClO X_{4} X^{-}$
D $H X_{3} O X^{+}$ and $NH X_{4} X^{+}$

Answer: D

In

H X_{3} O X^{+}

oxygen has 3 bond pairs and 1 lone pair, and in

NH X_{4} X^{+}

nitrogen has 4 bond pairs, so both are

s p^{3}

. The other pairs are

s p

/

s p^{2}

,

s p^{2}

/

s p^{3}

and

s p^{2}

/

s p^{3}

.

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