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Question: Answered & Verified by Expert
The order of covalent character of KF, KI, $\mathrm{KCl}$ is
ChemistryChemical Bonding and Molecular StructureTS EAMCETTS EAMCET 2016
Options:
  • A $\mathrm{KCl} < \mathrm{KF} < \mathrm{Kl}$
  • B $\mathrm{Kl} < \mathrm{KCl} < \mathrm{KF}$
  • C $\mathrm{KF} < \mathrm{KI} < \mathrm{KCl}$
  • D $\mathrm{KF} < \mathrm{KCl} < \mathrm{Kl}$
Solution:
2707 Upvotes Verified Answer
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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