Which of the following compounds exhibits cov | vedclass

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(B) According to Fajan's rule,the covalent character in an ionic compound increases with a decrease in the size of the cation and an increase in its c

Vedclass · Accepted Answer

$AlCl_3$

Vedclass · Answer

(B) According to Fajan's rule,the covalent character in an ionic compound increases with a decrease in the size of the cation and an increase in its charge.$Al^{3+}$ has a smaller size and higher charge compared to $Na^{+}$,$Mg^{2+}$,and $H^{-}$.Due to the high polarizing power of the $Al^{3+}$ ion,it polarizes the electron cloud of the $Cl^{-}$ ion to a greater extent,leading to significant covalent character in the $Al-Cl$ bond.Therefore,$AlCl_3$ is considered to have significant covalent character.

Which of the following compounds exhibits covalent character?

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