Which of the following species are correctly matched with their geometries according to the VSEPR theory?

{B r F_{6}}^{+} \to

octahedral

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{S n C l_{5}}^{-} \to

trigonal bipyramidal

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{C l F_{2}}^{-} \to

linear

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{I F_{4}}^{+} \to

see-saw

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Solution

The correct options are
A ${S n C l_{5}}^{-} \to$ trigonal bipyramidal
B ${B r F_{6}}^{+} \to$ octahedral
C ${I F_{4}}^{+} \to$ see-saw
D ${C l F_{2}}^{-} \to$ linear
According to VSEPR theory, Lewis dot structure determines the total no. of electrons around the central atom. Multiple bonds (double/triple ) counts as one.
The number of bonding and non-bonding electrons pairs determines the geometry of electron pairs and the molecular geometry.

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