The bond dissociation energy of B–F in `BF_3` is 646 kJ `mol^(–1)` whereas that of C-F in `CF_4` is 515 kJ `mol^(–1)`. The correct reason for higher B-F bond dissociation energy ascompared to that of C-F is:-A. Significant `ppi-ppi` interaction between B and F in `BF_3` whereas there is no possibility of such interaction between C and F in `CF_4`.B. Lower degree of `ppi-ppi` interaction between B and F in `BF_3` than that between C and F in `CF_4`C. Smaller size of B atom as compared to that of C atomD. Stronger bond between B and F in `BF_3` as compared to that between C and F in CF

The bond dissociation energy of B–F in `BF_3` is 646 kJ `mol^(–

1.	The bond dissociation energy of B–F in `BF_3` is 646 kJ `mol^(–1)` whereas that of C-F in `CF_4` is 515 kJ `mol^(–1)`. The correct reason for higher B-F bond dissociation energy ascompared to that of C-F is:-A. Significant `ppi-ppi` interaction between B and F in `BF_3` whereas there is no possibility of such interaction between C and F in `CF_4`.B. Lower degree of `ppi-ppi` interaction between B and F in `BF_3` than that between C and F in `CF_4`C. Smaller size of B atom as compared to that of C atomD. Stronger bond between B and F in `BF_3` as compared to that between C and F in CF
Answer» Correct Answer - A In `BF_3 .ppi-ppi` back bonding is present .

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