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The bond dissociation energy of gaseous ...

The bond dissociation energy of gaseous `H_(2), Cl_(2)` and `HCl` are `104, 58` and `103 kcal mol^(-1)` respectively. The enthalpy of formation for `HCl` gas will be

A

`-44` kcal

B

44 kcal

C

`-22` kcal

D

22 kcal

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The correct Answer is:
C
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