The covalent character of CaCl_2, BaCl_2, SrC | vedclass

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Question

(A) According to Fajan's rule,the covalent character of an ionic compound increases with a decrease in the size of the cation. As we move down the gro

Vedclass · Accepted Answer

$BaCl_2 < SrCl_2 < CaCl_2 < MgCl_2$

Vedclass · Answer

(A) According to Fajan's rule,the covalent character of an ionic compound increases with a decrease in the size of the cation. As we move down the group $2$ $(Mg^{2+} Consequently,the polarising power of the cation decreases,leading to a decrease in the covalent character. Therefore,the correct order of covalent character is $BaCl_2 < SrCl_2 < CaCl_2 < MgCl_2$.

The covalent character of $CaCl_2, BaCl_2, SrCl_2$ and $MgCl_2$ follows the order:

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