Tests for anions

Question 1

Test & test result for carbonate

Answer 1

Test: add dilute acid
result: effervescence, carbon dioxide produced

Question 2

Test & test result for chloride (in solution)

Answer 2

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

Question 3

Test & test result for bromide (in solution)

Answer 3

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

Question 4

Test & test result for nitrate (in solution)

Answer 4

Test: add aqueous sodium hydroxide then aluminium foil; warm carefully
result: ammonia produced

Question 5

Test & test result for sulphate (in solution)

Answer 5

Test: acidify, then add aqueous barium nitrate
result: white ppt.