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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2009
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From the following bond energies : <br> H – H bond energy : 431.37 kJ $mol^{–1}$ <br> C = C bond energy : 606.10 kJ $mol^{–1}$ <br> C – C bond energy : 336.49 kJ $mol^{–1}$ <br> C – H bond energy : 410.50 kJ $mol^{–1}$ <br> Enthalpy for the reaction, <br>



( A ) $1523.6 Kj mol^{-1}$
( B ) $-120.0Kj mol^{-1}$
( C ) $–243.6 Kj mol^{-1}$
( D ) $553.0 Kj mol^{-1}$

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