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The order of covalent character of KF, KI, $\mathrm{KCl}$ is
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The correct answer is:
$\mathrm{KF} < \mathrm{KCl} < \mathrm{Kl}$
Covalent character increases with increase in size of anion or decrease with size of cation. As, here cation $\left(\mathrm{K}^{+}\right)$in all the species is common, hence the covalent character will increase in the order as: $\mathrm{KF} < \mathrm{KCl} < \mathrm{Kl}$.
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