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  • Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is :  Option: 1 Calcium chloride<

Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is :
 

Option: 1

Calcium chloride


Option: 2

Strontium chloride


Option: 3

Magnesium chloride

 


Option: 4

Beryllium chloride


Answers (1)

best_answer

For chlorides of group 2 elements, going down the group covalent character increases. This is because going down the group charge to size ratio decreases and the polarizing power of cation decreases and the lower is polarising power, the more ionic character.

Polarizing power of group 2 elements is Be^{2+}>Mg^{2+}>Ca^{2+}>Sr^{2+}>Ba^{2+}

and, the covalent character is

BeCl_{2}>MgCl_{2}>CaCl_{2}>SrCl_{2}>BaCl_{2}

hence, the correct answer is option 4. 

Posted by

Ritika Jonwal

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