Which chemical species can form an ionic bond with an anion? Hg22+ NO2– SO32– Ar

Which chemical species can form an ionic bond with an anion?
Hg22+
NO2–
SO32–
Ar

Anion has a negative charge,  so will be a non metallic element. an ionic bond is formed between metal and non mental, therefore Hg2+ being both metallic and having a positive charge, is the cation required to form an ionic bond

Im guessing that is meant to be Hg2+, and if so then this is the correct answer. an anion has a negative charge, and as so will be a non metallic element. an ionic bond is formed between a metal and a non mental, therefore Hg2+ being both metallic and having a positive charge, is the cation required to form an ionic bond

The answer is A.(Hg2+)

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