1.

The \[H-H\] bond energy is 430 kJ \[mol\] and \[Cl-Cl\] bond energy is \[240\,kJ\,mo{{l}^{-1}}.\,\,\Delta H\] for \[HCl\] is \[-90\,kJ\]. The \[H-Cl\] bond energy is about [BVP 2003]

A.        \[180\,kJ\,mo{{l}^{-1}}\]     
B.        \[360\,kJ\,mo{{l}^{-1}}\]
C.        \[213\,kJ\,mo{{l}^{-1}}\]     
D.        \[425\,kJ\,mo{{l}^{-1}}\]
Answer» E.


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