Which of the following sets of cations are all found in Group 1 of qualitative analysis?
University of Ilorin CHM108 2025 past question
- Pb²⁺, Hg²⁺, and Ag⁺
- Cu²⁺, Bi³⁺, and Cd²⁺
- Fe³⁺, Al³⁺, and Cr³⁺
- Mg²⁺, Na⁺, and K⁺
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