Questions
Consider the following statement.
I. When is converted into bond order decreases.
II. molecule is paramagnetic because it contains two unpaired electrons in and molecular orbitals.
III. The bond length in NO is greater than .
Choose the correct option.
detailed solution
Correct option is C
Statement II and III are correct.The molecular orbital configuration of O2 molecule is as follows: σ 1s2, σ *1s2, σ 2s2, σ *2s2, σ 2p2z,π2px2 =π2py2 ,π*2px1=π*2py1There are 10 bonding and 6 nonbonding electrons in the orbitals according to the molecular orbital configuration.Therefore, Bond order =12[Bonding-antibonding]= 12[10−6]=12(4)=2Thus, the bond order O2 is 2. The molecular orbital configuration of O2+2 is σ1s2,σ*1s2,σ2s2,σ*2s2,σ2pz2,π2px2=π2py2There are 10 bonding and 4 nonbonding electrons in the orbitals according to the molecular orbital configuration.Therefore, Bond order =12[Bonding-antibonding]=12[10−4]=3.Hence statement I is incorrect.Talk to our academic expert!
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