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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3cb109

Select all the correct comparisons of bond angle.

AThe O-C-O angle in $CO X_{2}$ is greater than the O-S-O angle in $SO X_{2}$
BThe H-P-H angle in $PH X_{3}$ is greater than the H-N-H angle in $NH X_{3}$
CThe H-C-H angle in $CH X_{3} X^{-}$ is greater than in $CH X_{3} X^{+}$
DThe F-B-F angle in $BF X_{3}$ is greater than in $BF X_{4} X^{-}$

Answer: A, D

CO X_{2}

is linear (

18 0^{\circ}

) while

SO X_{2}

is bent (about

11 9^{\circ}

).

BF X_{3}

is planar (

12 0^{\circ}

) while

BF X_{4} X^{-}

is tetrahedral (

109. 5^{\circ}

).

CH X_{3} X^{-}

(pyramidal, about

10 7^{\circ}

) has a smaller angle than planar

CH X_{3} X^{+}

(

12 0^{\circ}

), and

PH X_{3}

(

93. 5^{\circ}

) has a smaller angle than

NH X_{3}

(

10 7^{\circ}

).

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