Which of the following statements about the molecule O₂ is false? A)Its bond order is 2. B)The total number of electrons is 12. C)It is paramagnetic. D)It has two pi bonds. E)It has one sigma bond.

Question

Quizplus · Accepted Answer

According to the formula O₂, there are only two possible pi bonds (represented by the "U" symbols) and one sigma bond (represented by the "S" symbol). Therefore, statement D is false, as it claims there are two pi bonds. The bond order can be calculated as follows: (1/2) x (number of bonding electrons - number of anti-bonding electrons). In this case, there are 8 bonding electrons and 4 anti-bonding electrons, so the bond order is 2. The total number of electrons can be calculated by adding up the number of electrons in each atom and each bond. In this case, there are four oxygen atoms (4 x 6 = 24 electrons), two sulfur atoms (2 x 16 = 32 electrons), and one boron atom (5 electrons) for a total of 61 electrons. However, since there is one positive charge on the molecule (indicated by the "1+" symbol), one electron is subtracted, giving a total of 60 electrons. Finally, since there are unpaired electrons, the molecule is paramagnetic.

Which of the Following Statements About the Molecule O2 Is

Which of the Following Statements About the Molecule O₂ Is