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The bond energies of H - H and I - I bon...

The bond energies of H - H and I - I bonds are `435 kJ mol^-1 and 150 kJ mol^-1` respectively. If `DeltaH_f^o` for HI is `26.5 kJ mol^-1` then bond enthalpy of H-I bond is

A

558.5 kJ/mo!

B

266 kJ/mol

C

611.5 kJ/mol

D

293 kJ/mol

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