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Correct order of covalent character of alkaline earth metal chloride in:
A
BeCl₂ < MgCl₂ < CaCl₂ < SrCl₂
B
BeCl₂ < CaCl₂ < SrCl₂ < MgCl₂
C
BeCl₂ > MgCl₂ > CaCl₂ > SrCl₂
D
SrCl₂ > BeCl₂ > CaCl₂ > MgCl₂
Explanation
According to Fajan's rule, covalent character decreases down the group as cation size increases.
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