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  4. Which of the alkaline earth metal halides given below is essentially covalent in nature?

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Q. Which of the alkaline earth metal halides given below is essentially covalent in nature?

NTA AbhyasNTA Abhyas 2022

Solution:

$Be^{2 +}$ cation is very small in size and in terms of Fajan's rules brings about polarization of electronic cloud of anion $\left(\right.Cl^{-}\left.\right)$ i.e. $BeCl_{2}$ is covalent in nature.