Chemistry, 08.04.2020 04:23, zayeboyd4971
Which of the following statements is false ?A) To facilitate the trigonal bipyramidal geometry of PF5, the s and three p and one of the d atomic orbitals of the phosphorus atom are hybridized to form 5 equivalent sp3d orbitals that can be arranged in a trigonal bipyramidal geometry and can be overlapped with the unhybridized p atomic orbitals of the fluorine atoms to form five sigma bonds. B) cis- and trans- isomers of a molecule such as C2H2Cl2 result because of the inability to rotate the C=C bond due to the presence of a pi bond between the carbon atoms. C) In the molecule NCl3 the nitrogen atom is hybridized sp3 but the lone pair of electrons on the N atom reside in unhybridized p orbitals of the N atom rather than in one of the sp3 hybrid orbitals. D) A sigma bond results from the end-to-end overlap of atomic orbitals, which is a more energetically stable overlap than the pi bond’s side-to-side overlap of atomic orbitals. E) A triple bond contains one sigma bond and two pi bonds.
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