question_answer

Which bond do you expect to be stronger in each of the following cases and why? (i) \[H-H,\,Cl-Cl\] (ii) \[{{O}_{2}},\,{{N}_{2}}\] (iii) \[F-F,\,Cl-Cl\]

Answer:

                (i) H-H is stronger because of smaller size of H-atoms. (ii)\[N\equiv N\] is stronger because it contains a triple bond while \[{{O}_{2}}\] contains a double bond \[(O=O)\]. (iii) \[Cl-Cl\] is stronger because repulsions between the two F-atoms in \[{{F}_{2}}\]are larger on account of greater electron density around F-atom due to smaller size and hence greater repulsions between the two F-atoms.