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The bond dissociation energy of BF in BF 3 is 646 kJ mol -1 whereas that of CF in CF 4 is 515 kJ mol 1 . The correct reason for higher BF bond dissociation energy as compared to that of CF is (A) Significant p? p? interaction between B and F in BF 3 whereas there is no
The bond dissociation energy of B–F in BF3 is 646 kJ mol-1 whereas that of C–F in CF4 is 515 kJ mol–1. The correct reason for higher B–F bond dissociation energy as compared to that of C–F is
(A) Significant p? – p? interaction between B and F in BF3 whereas there is no possibility of such interaction between C and F in CF4.
(B) Lower degree of p? – p? interaction between B and F in BF3 than that
between C and F in CF4
(C) Smaller size of B-atom as compared to that of C-atom
(D) Stronger bond between B and F in BF3 as compared to that between C and F in CF4.
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