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The heat of atomisation of PH(3(g)) is 2...

The heat of atomisation of `PH_(3(g))` is `228kcal mol^(-1)` and that of `P_(2)H_(4)` is `355kcal mol^(-1)`. Calculate the average bond energy of `P-P` bond.

A

102 kcal `mol^-1`

B

51 kcal `mol^-1`

C

26 kcal `mol^-1`

D

204 kcal `mol^-1`

Text Solution

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The correct Answer is:
B
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