JEE Main Chemistry question

The compound possessing the most strongly ionic nature is

(A)
(B)
(C)
(D)Correct

Answer: (D)

Solution

Ionic character is favoured by a highly electropositive cation combined with a low cationic charge (less polarising power). Although Ba, Sr and Ca are electropositive alkaline earth metals, they each carry a charge, giving

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Question ID VK-133473