1.

The bond dissociation energy of O-H bond in a water molecule is _____________(a) 23 kJ/mole(b) 470 kJ/mole(c) 470 J/mole(d) 23 J/mole

Answer» Right answer is (b) 470 kJ/mole

Best explanation: The energy required to break O-H bond in a water molecule is more than that required for breaking hydrogen bond, which is 470 kJ/mole.


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