Which of the following compounds are expected to possess a HIGHER covalent character than ? — Chemical Bonding Chemistry Question

💡 Solution & Explanation

$CuCl$ is more covalent because $Cu^+$ has a pseudo-inert gas configuration. $MgCl_2$ and $AlCl_3$ are more covalent because $Mg^{2+}$ and $Al^{3+}$ have a higher charge and smaller size than $Na^+$. $KCl$ is more ionic than $NaCl$ because $K^+$ is larger than $Na^+$, reducing its polarizing power.