NEET Chemistry Covalent Bond MCQ Question
Consider a diagram showing a water molecule with two O-H bonds displayed with their respective bond enthalpies. If the average bond enthalpy is calculated as 464.5 kJ/mol, what can be inferred about the bond enthalpies of the individual O-H bonds?
The two O-H bonds have differing bond enthalpies.
Both O-H bonds have equal bond enthalpies.
The O-H bond enthalpy in water is always 502 kJ/mol.
Only one O-H bond enthalpy is considered for the average.
Correct Answer
Detailed Explanation
From the provided NCERT context, the average bond enthalpy calculation considers differences in O-H bond energies due to their chemical environment, indicating the bonds have differing enthalpies.
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