From the following bond energies : H-H bond energy : 431.37 kJ mol -1 C=C bond energy : 606.10 kJ mol -1 C-C bond energy : 336.49 kJ mol -1 C-H bond energy : 410.50 kJ mol -1 Enthalpy for the reaction, will be :

1. A. 553.0 kJ mol -1
2. B. 1523.6 kJ mol -1
3. C. -243.6 kJ mol -1
4. D. -120.0 kJ mol -1

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