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| 1. |
Bond dissociation energy of F_(2) is less than that of CI_(2). Explain. Or F_(2) has lower bond dissociation enthalpy than CI_(2). Why ? |
| Answer» Solution :Due to SMALLER SIZE, the LONE pairs of ELECTRONS on the F-atoms repel the bond pair of the F-F bond. In CONTRAST, because of comparatively large size of CI atoms, the lone pairs on the CI atoms do not repel the bond pair of CI-CI bond. As a rsult, F-F bond energy is lower than that of CI-CI bond energy. | |