Which of the following chlorides will show th | vedclass

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(C) According to $Fajan's$ rule,the covalent character increases with a decrease in the size of the cation and an increase in its charge.In $BeCl_2$,t

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$BeCl_2$

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(C) According to $Fajan's$ rule,the covalent character increases with a decrease in the size of the cation and an increase in its charge.In $BeCl_2$,the $Be^{2+}$ ion has the smallest size and the highest charge density among the given options ($K^+$,$Ca^{2+}$,$Be^{2+}$,$Ba^{2+}$).Therefore,$BeCl_2$ has the highest polarizing power,leading to the highest covalent character.

Which of the following chlorides will show the highest covalent character?

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