Which of the following statements correctly apply the concept of electronegativity to predict chemic — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Statement A is a standard empirical rule (if $\Delta EN > 2.3$, the oxide is basic). Statement C is true; while EN decreases down the group, the overriding factor for acid strength in hydrides is the increasing atomic size weakening the H-A bond. Statement D is the standard Pauling approximation. Statement B is false; Carbon and Iodine have nearly identical electronegativities ($\approx 2.5$), making the C-I bond practically non-polar.