(a)Stronger σ bond between B and F in BF3 as compared to that between C and F in CF4(b)Significant pπ−pπ interaction between B and F in BF3 whereas there is no possibility of such interaction between C and F in CF4(c)Smaller size of B-atom as compared to that of C-atom(d)Lower degree of pπ−pπ interaction between B and F in BF3 than that between C and F in CF4