Anion tests QA GSCE O level test

What is the test for iodide ion?

• Acidify with nitric acid and add silver nitrate

• Add dilute acid

• Add aqueous sodium hydroxide, then add aluminium strips

• Acidify with nitric acid and add barium nitrate

What is the result of the sulfate ion experiment

• Yellow ppt

• Produces ammonia gas

• White ppt

• Produces CO2 gas and effervecense

What is the result of the carbonate ion test

• White ppt is formed

• Yellow ppt is formed

• Ammonia that turns red litmus paper blue is produced

• White ppt is produced as well as effervescence. CO2 is produced.

What is the test for the chloride ion?

• Acidify with nitric acid and then add barium nitrate

• Acidify with nitric acid and then add silver nitrate

• Add dilute acid

• Add aqueous sodium hydroxide and then add aluminium strips

What is the test result for nitrate ion

• White ppt formed

• Yellow ppt formed

• Ammonia gas produced

• Carbon dioxide produced

What is the test result of the iodide ion

• Yellow ppt formed

• White ppt formed

• Ammonia gas produced

• Carbon dioxide gas produced and effervescence, white ppt too

What is the carbonate ion test

• Add dilute acid

• Acidify with nitric acid and add barium nitrate

• Acidify with nitric acid and add silver nitrate

• Add aqueous sodium hydroxide and then add aluminium strips, warm carefully.

What is the result of the chloride ion test?

• Yellow ppt formed

• White ppt formed

• Ammonia gas produced

• Carbon dioxide produced, effervescence formed and white ppt in limewater

What is the test for the nitrate ion

• Add aqueous sodium hydroxide and then add aluminium strips

• Add dilute acid

• Acidify with nitric acid and add barium nitrate

• Acidify with nitric acid and add silver nitrate

What is the test for sulfate ion

• Acidify with nitric acid and add silver nitrate

• Add dilute acid

• Acidify with nitric acid and add barium nitrate

• Add aqueous sodium hydroxide and aluminium strips, warm carefully.