Oxygen has two common molecular anions: peroxide (O22-) and superoxide (O2-) . Use the MO energy level diagram below to identify which one of the following statements is not correct. These molecular orbitals are formed from the 2s and 2p atomic orbitals. 
A) The bond order of the peroxide is 1.
B) The superoxide has a shorter bond than the peroxide.
C) Like O2, the peroxide is paramagnetic.
D) The superoxide has a stronger bond than the peroxide.
E) Oxygen, O2, has a stronger bond than either of these oxides.
Correct Answer:
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