In the case of alkali metals,the covalent cha | vedclass

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(C) According to Fajans' rule,the covalent character is directly proportional to the polarizability of the anion.As the size of the anion increases,it

Vedclass · Accepted Answer

$MI > MBr > MCl > MF$

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(C) According to Fajans' rule,the covalent character is directly proportional to the polarizability of the anion.As the size of the anion increases,its polarizability increases,which leads to an increase in the covalent character of the bond.The order of the size of halide ions is $F^- Therefore,the order of covalent character in alkali metal halides is $MI > MBr > MCl > MF$.

In the case of alkali metals,the covalent character decreases in the order

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