Question

Which of the following statements is not true about VSEPR theory?

• A. Lone pair - lone pair repulsion is maximum
• B. The lone pair and double bonds occupy equatorial positions in the trigonal bipyramidal structure
• C. More electronegative atoms occupy axial positions in the trigonal bipyramidal structure
• D. Bigger atoms occupy the axial position in the trigonal bipyramidal structure

Answer 1

The correct option is D Bigger atoms occupy the axial position in the trigonal bipyramidal structure

VSEPR theory suggests that in the final geometry of the molecule there should be minimum repulsions.
Option (a), (b) and (c) agree with VSEPR theory but option (d) does not.