Understanding VSEPR Theory: Molecular Shapes and Electron Arrangements

The correct answer describes a linear molecular arrangement with 2 bonding groups at 180 degrees. The incorrect answers include a triangular planar arrangement with 3 bonding groups at 120 degrees, a tetrahedral arrangement with 4 bonding groups at 109.5 degrees, and a trigonal bipyramidal arrangement with 5 bonding groups at 90 and 120 degrees.

The molecular shape associated with the given electron arrangement of Trigonal Bipyramidal is T-Shaped with 3 bonding pairs<90 degrees. Linear, Tetrahedral, and Octahedral shapes do not match the specified electron arrangement.

In this scenario, the molecule has 4 bonding pairs which results in a Tetrahedral electron arrangement and molecular shape with bond angles of 109.5 degrees.

The correct answer describes a molecule with 3 bonding pairs arranged in a trigonal planar shape with bond angles of 120 degrees.

The correct answer, Ammonia, fits the given electron arrangement and molecular shape descriptions, leading to a trigonal pyramidal structure with one lone pair. Water, Methane, and Carbon dioxide have different electron arrangements and molecular shapes compared to the descriptions provided.

The electron arrangement of tetrahedral and molecular shape of V-shaped or bent with 2 bonding pairs at less than 109.5 degrees corresponds to the molecular structure of water (H2O). Water has two bonding pairs of electrons and two lone pairs, resulting in a bent or V-shaped geometry.

The correct answer describes the electron arrangement as Trigonal Bipyramidal with a linear molecular shape, having 2 bonding groups with bond angles of approximately 180 degrees. The incorrect answers provided do not match the given descriptions and characteristics of the electron arrangement and molecular shape.

The electron arrangement and molecular shape with six bonding groups at 90 degrees is known as Octahedral.

The correct answer, square planar, refers to the molecular shape where there are 4 bonding groups arranged in a flat square with 90-degree angles.

In this case, with 5 bonding groups each with angles less than 90 degrees, the electron arrangement is octahedral and the molecular shape is square pyramidal.

The correct answer describes the electron arrangement as Trigonal Planar and the molecular shape as V-Shaped or Bent with 2 bonding pairs less than 120 degrees. The incorrect answers do not match the given description of the electron arrangement and molecular shape, making them incorrect choices.

The correct electron arrangement and molecular shape with the given parameters is Trigonal Bipyramidal, where there are 5 bonding pairs and bond angles of 90 degrees and 120 degrees. The other options do not match the described criteria.