Regarding the properties of the bond in different organohalides, which of the following statements a — Haloalkanes and Haloarenes Chemistry Question

💡 Solution & Explanation

A) True. Due to the large atomic radius of iodine, the $C-I$ orbital overlap is poor, making the bond weakest ($234$ kJ/mol) and easily broken during substitution. B) True. In haloarenes, the $sp^2$ hybridized carbon and resonance delocalization (partial double bond character) significantly shorten the $C-X$ bond compared to the purely single $sp^3$ $C-X$ bond in haloalkanes. C) False. Homolytic (and heterolytic) cleavage reactivity depends on bond enthalpy, not strictly on polarity. The $C-F$ bond is incredibly strong ($452$ kJ/mol) and is exceptionally unreactive. D) True. The halogen's $-I$ effect pulls electron density away from the carbon, rendering it electrophilic and susceptible to attack by nucleophiles.