Tests for Anions

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Chemistry

IGCSE Chemistry

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7 Terms

1
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chloride test

acidify with dilute nitric acid, then add aqueous silver nitrate. white ppt

2
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sulfate test

acidify with dilute nitric acid, then add aqueous barium nitrate. white ppt

3
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carbonate

add dilute acid: Effervescence, carbon dioxide turns limewater milky

4
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Iodide

acidify with dilute nitric acid, then add aqueous silver nitrate. yellow ppt

5
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Bromide

acidify with dilute nitric acid, then add aqueous silver nitrate. cream ppt

6
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Nitrate

add aqueous sodium hydroxide, then aluminum foil; warm carefully. ammonia is produced

7
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Sulfite

add a small volume of acidified aqueous potassium manganate. goes from purple to colorless