Valence Shell Electron Pair Repulsion (VSEPR) Theory

The repulsive interaction is the highest between

Give reasons for the highest repulsion between lone pairs of electrons as compared to the bond pair-bond pair repulsions in a molecule.

The repulsive interaction of electron pairs follows the order

The $F-Br-F$ bond angles in $Br{F}_5$ and the $Cl-P-Cl$ bond angles in $PC{l}_5$, respectively, are

Which of the molecules has trigonal bipyramidal geometry with bond angles 120 ° and 90 °?

Due to_____ the deviations occurs from idealized shape of ${\mathrm{H}}_2\mathrm{O}$ and ${\mathrm{NH}}_3$ molecules. (attractive effect/repulsive effect)

Which of the following species has a square planar geometry?

The shape of ${\mathrm{XeF}}_4$ molecule is based on the fact that it has

According to VSEPR theory, the correct order of repulsion is

Molecular shapes of ${\mathrm{SF}}_4, {\mathrm{CF}}_4, {\mathrm{XeF}}_4$ are

Non-linear species among the following is:

Which of the following does not show octahedral geometry?

According to VSEPR theory,

Identify the $T$ -shaped molecule from the following options.

An isostere is

In which one of the following pairs, the two species have identical shape but they differ in hybridization?

The number of electrons in the valence shell of the central atom of a molecule is 8. The molecules is?

The structure of $XeO{F}_4$ is

The shape of a molecule is determined by electron-pair repulsions in the valence shell. A lone pair occupies larger space than a bond pair because it is not shared by two nuclei. Thus the lone pair-lone pair repulsion is greater than the lone pair-bond pair repulsion, which in turn is greater than the bond pair-bond pair repulsion. The presence of lone pairs causes distortion of bond angles and hence a deviation from an ideal shape. The extent of distortion depends upon the orientation of the lone pairs around the central atom. In a trigonal bipyramid, the lone pairs occupy equatorial positions than the apical ones. In $\mathrm{A}{\mathrm{B}}_{\mathrm{n}}$ type molecules, as the electronegative of A increases, the bond pairs come closer and the repulsion between them increases. On the other hand, as electronegativity of B increases, the bond pairs get farther and repulsion decreases.
Which of the following species will have the lone pair effects cancelled?

The geometry of ${\mathrm{I}}_3^{-}$ is