Which of the following cations are all found in Group I?
University of Ilorin CHM108 2025 past question
- Pb²⁺, Hg²⁺, and Ag⁺
- Pb²⁺, Hg₂²⁺, and Ag⁺
- Cu²⁺, Pb²⁺, and Bi³⁺
- Fe³⁺, Al³⁺, and Cr³⁺
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