Identify Anions
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More Lessons for IGCSE Chemistry
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A series of free IGCSE Chemistry Activities and Experiments (Cambridge IGCSE Chemistry).
Check with your syllabus to find which tests you will need to know for your examination.
The following table shows the tests for anions:
Carbonate, Chloride, Bromide, Iodide, Nitrate, Sulfate and Sulfite.
Testing for anions:
carbonate - add dilute acid, carbon dioxide produced
sulfate - acidify, then add aqueous barium nitrate, white ppt.,
chloride - acidify with dilute nitric acid, then add aqueous silver nitrate, white ppt.,
iodide - acidify with dilute nitric acid, then add aqueous silver nitrate, yellow ppt.,
nitrate - add aqueous sodium hydroxide, then aluminium foil; warm carefully, ammonia produced
Halide Ion Tests
chloride - acidify with dilute nitric acid, then add aqueous silver nitrate, white ppt.,
bromide - acidify with dilute nitric acid, then add aqueous silver nitrate, cream ppt.,
iodide - acidify with dilute nitric acid, then add aqueous silver nitrate, yellow ppt.,
You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
More Lessons for IGCSE Chemistry
Math Worksheets
Check with your syllabus to find which tests you will need to know for your examination.
The following table shows the tests for anions:
Carbonate, Chloride, Bromide, Iodide, Nitrate, Sulfate and Sulfite.
Testing for anions:
carbonate - add dilute acid, carbon dioxide produced
sulfate - acidify, then add aqueous barium nitrate, white ppt.,
chloride - acidify with dilute nitric acid, then add aqueous silver nitrate, white ppt.,
iodide - acidify with dilute nitric acid, then add aqueous silver nitrate, yellow ppt.,
nitrate - add aqueous sodium hydroxide, then aluminium foil; warm carefully, ammonia produced
Halide Ion Tests
chloride - acidify with dilute nitric acid, then add aqueous silver nitrate, white ppt.,
bromide - acidify with dilute nitric acid, then add aqueous silver nitrate, cream ppt.,
iodide - acidify with dilute nitric acid, then add aqueous silver nitrate, yellow ppt.,
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.
You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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