Which of the following compounds is the most | vedclass

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(B) According to Fajan's rule,the covalent character of an ionic bond increases with an increase in the size of the anion and a decrease in the size o

Vedclass · Accepted Answer

$AlI_3$

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(B) According to Fajan's rule,the covalent character of an ionic bond increases with an increase in the size of the anion and a decrease in the size of the cation. In the given compounds,$Al^{3+}$ is the smallest cation,which has the highest polarizing power. Among the anions ($Cl^{-}$ and $I^{-}$),the iodide ion $(I^{-})$ is larger than the chloride ion $(Cl^{-})$. Therefore,$AlI_3$ has the maximum polarization of the anion electron cloud by the cation,resulting in the highest covalent character.

Which of the following compounds is the most covalent?

Similar Questions

Identify the metal halide from the following that has the highest ionic character? ($M =$ metal atom)

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