Chemistry · Oct / Nov 2021 · Paper 12 · Question 5
5070Identification of ions and gases
When aqueous sodium hydroxide is added to aqueous compound X, a red-brown precipitate is formed. When dilute nitric acid followed by aqueous barium nitrate is added to aqueous compound X, a white precipitate is formed. What is X?
- Achromium(III) sulfate
- Bchromium(III) chloride
- Ciron(III) chloride
- Diron(III) sulfate
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Correct answer: D. iron(III) sulfate
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