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The bond enthalpies of H(2) , X(2) and H...

The bond enthalpies of `H_(2) , X_(2)` and HX are in the ratio of `2 : 1 : 2` , if the enthalpy for formation of HX is `-50 kJ mol^(-1)` , the bond ethalpy of `H_(2)` is -

A

`200 kJ mol^(-1)`

B

`400 kJ mol^(-1)`

C

`100 kJ mol^(-1)`

D

`300 kJ mol^(-1)`

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The correct Answer is:
A
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MOTION-THERMOCHEMISTRY -EXERCISE - 2 (LEVEL - I)
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