GKFix MCQ Question

What is the trend of bond dissociation enthalpy for the diatomic halogen molecules (X₂)?

• A. Bond dissociation enthalpy increases from Fluorine to Iodine.
• B. Bond dissociation enthalpy remains constant across the halogen group.
• C. Bond dissociation enthalpy decreases from Fluorine to Iodine, except that of Fluorine is lower than Chlorine.
• D. Bond dissociation enthalpy first increases and then decreases from Fluorine to Iodine.