Which of the following statement(s) is (are) not correct? Check all that apply.Select one or more:a.VSEPR theory helps to predict molecular shapes in three-dimensional space.b.If the central atom of a molecule is in Group 14 (group of carbon) of periodic table, the molecular geometry must be tetrahedral.c.The molecular shapes of NF3 and BF3 are the same.d.Electron geometry of ammonia (NH3) is the same as that of water (H2O)

The incorrect statements are:

b. If the central atom of a molecule is in Group 14 (group of carbon) of the periodic table, the molecular geometry must be tetrahedral. This statement is incorrect because the molecular geometry also depends on the number of lone pairs of electrons on the central atom. For example, methane (CH4) has a tetrahedral shape, but ammonia (NH3), which also has a central atom from Group 14, has a trigonal pyramidal shape due to the presence of a lone pair of electrons.

c. The molecular shapes of NF3 and BF3 are the same. This statement is incorrect. NF3 has a trigonal pyramidal shape due to the presence of a lone pair of electrons on the nitrogen atom, while BF3 has a trigonal planar shape as there are no lone pairs on the boron atom.

d. Electron geometry of ammonia (NH3) is the same as that of water (H2O). This statement is incorrect. The electron geometry of NH3 is tetrahedral, while the electron geometry of H2O is also tetrahedral. However, the molecular geometry (shape) of NH3 is trigonal pyramidal, while that of H2O is bent or V-shaped due to two lone pairs of electrons on the oxygen atom.