A) \[C{{l}_{2}}>{{I}_{2}}>B{{r}_{2}}\]
B) \[{{I}_{2}}>B{{r}_{2}}>C{{l}_{2}}\]
C) \[{{I}_{2}}=C{{l}_{2}}=B{{r}_{2}}\]
D) \[C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}\]
Correct Answer: D
Solution :
The bond dissociation energy of\[C{{l}_{2}},B{{r}_{2}}\]and \[{{I}_{2}}\]is as: Molecule: \[C{{l}_{2}}\,\,\,\,>\,\,\,\,\,\,\,\,\,B{{r}_{2}}\,\,\,\,\,\,>\,\,\,\,\,\,\,{{I}_{2}}\] Dissociation: \[242.6~~~~~~~192.8~~~~~~~~~~151.1\] Enthalpy \[(kJ\text{ m}o{{l}^{-1}})\]
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