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Enthalpy of dissociation of H2C2O4righta...

Enthalpy of dissociation of `H_2C_2O_4rightarrow2H^(+)+C_2O_4^(2-)` will be ______ if enthalpy of neutralisation of strong acid and strong base is `-13.7` kcal `mol^-1` and that of oxalic acid by a strong base is ` -25` kcal `mol^-1`.

A

1.2 kcal `mol^-1`

B

11.7 kcal `mol^-1`

C

`-11.3` kcal `mol^-1`

D

2.4 kcal `mol^-1`

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