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If the bond dissociation energies of XY,...

If the bond dissociation energies of `XY,X_(2)` and `Y_(2)(` all diatomic molecules `)` are in the ratio `1:1:0.5` and `Delta_(f)H` of `XY` is `-200 kJ mol^(-1)`. The bond dissociation energy of `X_(2)` will be `:`

A

`800 kJ mol^(-1)`

B

`200 kJ mol^(-1)`

C

`300 kJ mol^(-1)`

D

`400 kJ mol^(-1)`

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The correct Answer is:
A
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Bond disociation enegry of XY,X_(2) and Y_(2) (all diatomic molecules) are in the ratio of 1: 1:0.5 and DeltaH_(f) of XY is -100 kJ mol^(-1) . The bond dissociation enegry of X_(2) is 100x . Find the value of x .

If the bond dissociation energies of XY , X_(2) and Y_(2) are in the ratio of 1:1:0.5 and DeltaH_(f) for the formation of Xy is -200 KJ//mol . The bond dissociation energy of X_(2) will be :-

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