According to the molecular orbital energy-level diagram below, which one of the

Question

According to the molecular orbital energy-level diagram below, which one of the following statements is not correct about NO, NO^+ and NO^-? These molecular orbitals are formed from the 2s and 2p atomic orbitals. a. Only one of these species is paramagnetic. b. NO^+ has the shortest bond. c The bond order in NO is 2.5. d. The bond order in NO^- is 2.0 e. NO^- has the weakest bond. Boron nitride, BN, is a new high-tech material. According to the molecular orbital energy-level diagram below, which one of the following statements is not correct about boron nitride? These molecular orbitals are formed from the 2s and 2p atomic orbitals. a. The bond order in BN is 2.0. b The cation BN^+ has a longer bond than BN. The bond order in the cation BN^+ is 1.5. d. The anion BN^- has a weaker bond than BN. e. BN is paramagnetic.

Explanation / Answer

Ans 13 A. Only one of these species is paramagnetic.

unpaired electrons impart paramagnetic character to the compound. NO and NO- have 1 and 2 unpaired electrons respectively which causes them to be paramagnetic.

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