Question

Which of the following molecular geometries could lead to a linear molecule after the removal of one atom? A. Bent B. Triangular planar C. T-shaped D. See-saw E. Trigonal bipyramid

Answer 1

A trigonal bipyramid geometry could lead to a linear molecule after the removal of one atom, as the remaining atoms can align linearly.

Step-by-step explanation:

The molecular geometry that could lead to a linear molecule after the removal of one atom is option E, the trigonal bipyramid. As shown in the given examples, a trigonal bipyramid with three equatorial vertices missing would adopt a linear molecular geometry. This linear geometry is the result of three nuclei and three lone pairs of electrons being arranged such that the molecule maintains a 180° angle, mimicking the electron-pair geometry of a trigonal bipyramid. When one atom is removed from a trigonal bipyramid, particularly from the equatorial plane, the remaining atoms can align to form a linear molecule

Answer 2

The geometry that could lead to a linear molecule after the removal of one atom is the trigonal bipyramidal structure, as seen in I3-.

Step-by-step explanation:

The molecular geometry that could lead to a linear molecule after the removal of one atom is E. Trigonal bipyramid. According to VSEPR theory, a trigonal bipyramidal structure with one atom removed would resemble a linear geometry. This is because the remaining atoms adjust to maintain symmetry and minimize electron pair repulsion, resulting in a straight line. An example of this would be the linear geometry of I3-, which can be described as a trigonal bipyramid with three equatorial vertices missing, thus forming a linear molecule with an angle of 180° between nuclei.