The results of two tests on solid X are shown.<br/>1-aqueous sodium hydroxide added<br/>2-acidified silver nitrate added <br/>Observations: 1. green precipitate formed<br/>2. yellow precipitate formed<br/><br/>What is X?

• Acopper(II) chloride
• Bcopper(II) iodide
• Ciron(II) chloride
• Diron(II) iodide

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