• # 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.

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