A researcher measures bond dissociation energies for halogens. Which diatomic molecule shows an abnormally higher bond energy compared to the smaller fluorine molecule?
Q1. A researcher measures bond dissociation energies for halogens. Which diatomic molecule shows an abnormally higher bond energy compared to the smaller fluorine molecule?
Answer: Cl2
Explanation: Cl2 has higher bond energy than F2 due to F2's lone pair-lone pair repulsion; F2 is tempting as it is more electronegative.