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The standard enthalpy of for ation (Delt...

The standard enthalpy of for ation `(Delta_(f) H^(@))` at 298 K for methane, `C H _(4) (g)` , is `-74 . 8 KJ mol^(-1)`.The additional information required to determine the average energy for C-H bond formation would be

A

The dissociation energy of hydrogen molecule, `H_(2)`

B

The dissociation energy of `H_(2)` and enthalpy of sublimation of carbon

C

Latent heat of vaporisation of methane

D

The first four ionisation energies of carbon and electron gain enthalpy of hydrogen

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The correct Answer is:
B
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