A) \[A{{g}^{2+}}\]
B) \[P{{b}^{2+}}\]
C) \[C{{u}^{2+}}\]
D) \[C{{d}^{2+}}\]
Correct Answer: B
Solution :
Generally \[d-\]block elements form complex and lead is a \[p-\]block element.
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