Verified Solution • 2025–26 Session moderate

QJEEM22Ch8e57: JEE Main 2022 Chemistry - Class 11 JEEM22Ch8e57 Solution: Arrange the following in increasing order of their covalent…

Arrange the following in increasing order of their covalent character.

A. CaF2\mathrm{CaF}_{2}

B. CaCl2\mathrm{CaCl}_{2}

C. CaBr2\mathrm{CaBr}_{2}

D. CaI2\mathrm{CaI}_{2}

Choose the correct answer from the options given below.

Multiple Choice Options

  • A B < A < C < D
  • B A < B < C < D
  • C A < B < D < C
  • D A < C < B < D

Step-by-Step Verified Solution

From Fajan's rule, for a given metal ion, as the size of anion increases, polarizability of anion increases and hence covalent character of the given ionic compound increases.

Hence, the increasing order of covalent character is \mathrm{CaF}_{2}&lt;\mathrm{CaCl}_{2}&lt;\mathrm{CaBr}_{2}&lt;\mathrm{Cal}_{2}

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