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JEE Main Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesJEE Main

For a diatomic molecule , the electronegativity difference between and [where bond energy of minus the geometric mean of the bond energies of and ]. The electronegativities of fluorine and chlorine are 4.0 and 3.0, and the bond energies of F─F and Cl─Cl are 38 kcal mol⁻¹ and 58 kcal mol⁻¹. The bond energy of Cl─F is

Answer: (A)

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Question ID VK-135296