Evaporating a solution to dryness is a technique used to precipitate Group 6 cations. Which of the following sets of ions belongs to this group?
University of Ilorin CHM108 2025 past question
- Mg²⁺ and Na⁺
- Pb²⁺ and Ag⁺
- Fe³⁺ and Al³⁺
- Ca²⁺ and Ba²⁺
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