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a
Bond order ∝1 Bond length −∞1 Bond enthalpy ∝ Stability
b
Stability ∝1 Bond order ∝1 Bond length ∝1 Bond en thalpy
c
Stability ∝ bondorcler ∞ bondlength ∞ bond enthalpy
d
Stability ∝ bond order ∝ bond enthalpy ∝1bond length
answer is D.
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Detailed Solution
A general correlation useful for understanding the stabilities of molecules is that, with increase in bond order, bond enthalpy increases and bond length decreases. Stability increases with increase in bond order and bond enthalpy. Therefore stability bond order bond enthalpy and stability increases with decrease in bond length. Therefore, Stability ∝1 bond length