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Bond energies and enthalpy changes - class-XII

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Multiple Choice

The enthalpies of combustion of carbon and carbon monoxide are -393.5 KJ and -283 KJ respectively the enthalpy of formation of carbon monoxide is :

  1. -676.5 KJ
  2. -110.5 KJ
  3. 110.5 KJ
  4. 676.5 KJ
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