Arrange the following in increasing order of their covalent character. A. CaF B. CaCl C. CaBr D. CaI Choose the correct answer from the options given below. 2 2 2 2 2 2 2 2 (A) B

Question

Arrange the following in increasing order of their covalent character. A. CaF B. CaCl C. CaBr D. CaI Choose the correct answer from the options given below. 2 2 2 2 2 2 2 2

(A) B < A < C < D
(B) A < B < C < D
(C) A < B < D < C
(D) A < C < B < D

Prashant Kotian · Accepted Answer

Correct answer: B) A < B < C < D. 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 CaF < CaCl < CaBr < Cal

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