Q.

Which is (are) true about VSEPR theory?

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a

Lone pair-lone pair repulsion is maximum

b

Lone pair and double bond occupy equatorial position in trigonal bipyramidal structure

c

More electronegative atom occupies axial position in trigonal bipyramidal structure

d

Bigger atoms occupy axial positions in trigonal bipyramidal structure

answer is A, B, D.

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Detailed Solution

The right response is D. In the trigonal bipyramidal structure, larger atoms are located in the axial position.
According to VSEPR theory, there should be a minimal amount of repulsion in the final shape of the molecule.
The VSEPR hypothesis is supported by options (a), (b), and (c), but not option (d).

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