Benzene or borazine, which is more reactive and why ?

Explanation

Borazine is more reactive as compared to benzene.

Benzene `(C_(6) H_(6))` which consists of `C=C` bonds is a non-polar molecule, whereas borazine `(B_(3)B_(3)H_(6))` having `B-N` bonds, due to electronegativity difference between `B` and `N` atoms (`B` is less electronegative as compared to `N`) is a pilar molecule `(B^(delta +) - N^(delta -))`. Hence. The `pi-cloud` in `B_(3) N_(3) H_(6)` is more lumpy, i.e. having more electron density on `N` as compared to `B`. This partial localisation of electron density on `N` atoms weakens the `B-N` bond making barazine more reactive as compared to benzene.