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JEE Main levelSingle correct optionDifficulty 2 of 3pn209

Which of the following species has a pyramidal shape?

A $SO X_{4} X^{2 -}$
B $SO X_{3} X^{2 -}$
C $SO X_{2}$
D $SO X_{3}$

Answer: B

SO X_{3} X^{2 -}

has three bond pairs and one lone pair on S (

s p^{3}

), so it is trigonal pyramidal.

SO X_{3}

is trigonal planar,

SO X_{4} X^{2 -}

tetrahedral and

SO X_{2}

bent.

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