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Silanes are silicon hydrides of general ...

Silanes are silicon hydrides of general formula `Si_(n)Hn_(2n+2)` and have several applications. From the data given below, the bond dissociation enthalpy of `Si-Si` bond `("in kJ mol"^(-1))` is
Given:
`DeltaH` of the reaction
`2Si(s)+3H_(2)(g)rarrSi_(2)H_(6)(g)" is "80.3 kJ mol"^(-1)`
Bond dissociation enthalpy for `H-H=436" kJ mol"^(-1)`
Bond dissociation enthalpy for `Si-H=304" kJ mol"^(-1)`
`Delta_(f)H[Si(g)]="450 kJ mol"^(-1)`

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