Match the species in Column I with the bond order in Column II.


Thus, on calculating we can get the bond order:


(i) (c);


So, Bond Order of NO = (15-10)


= 2.5


(ii) (d);


So, Bond Order of CO = (14-8)


= 3.


(iii) (a);


So, Bond Order of O2- = (10-7)


= 1.5


(iv) (b);


So, Bond Order of O2 = (16-12)


= 2.


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