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Question

# The species having pyramidal shape is

A

SO3

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B

BrF3

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C

SiO23

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D

OSF2

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Solution

## The correct option is D OSF2 Firstly, we will calculate value of ep and get the geometry. ⇒SO3⇒ep=(V+L+A−C)2=623 [AVSEPR] [Trigonal Planar] ⇒BrF3⇒ep=(7+3)2=5 [Trigonal Bipyramidal] ⇒SiO2−3⇒ep=(4+2)2=3 [AVSEPR] [Trigonal Planar] ⇒OSF2⇒(6+2)2=4 [AVSEPR] [Tetrahedral] SO3⇒ BrF3⇒ SiO2−3⇒ OSF2⇒ Therefore, here we can see that in structure we do not take lone pairs into count. So, OSF2 has a pyramidal shape

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