CH-685
Tests for cations
Chemistry · Secondary 3 · Medium · Tests for cations
A colourless solution gives a white precipitate when aqueous sodium hydroxide is added. The precipitate dissolves in excess sodium hydroxide to form a colourless solution.
Which cation is present?
Which cation is present?
- Ca²⁺
- Zn²⁺
- Cu²⁺
- Fe²⁺
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