Anion Test

Question 1

Carbonate test

Answer 1

Add dilute acid ( HCI etc)

Question 2

Carbonate result

Answer 2

Effervescence
Carbon dioxide produced
-Bubbling

Question 3

Chloride test

Answer 3

Acidly with nitric acid and then add aqueous silver nitrate

Question 4

Chloride result

Answer 4

White precipitate

Question 5

Bromide test

Answer 5

Acidly with dilute nitric acid and then add aqueous silver nitrate

Question 6

Bromide result

Answer 6

Cream precipitate

Question 7

Iodide test

Answer 7

Acidly with dilute nitric acid then add aqueous silver nitrate

Question 8

Iodide result

Answer 8

Yellow precipitate

Question 9

Nitrate test

Answer 9

Add aqueous sodium hydroxide

• then add aluminum foil
• warm carefully

Question 10

Nitrate result

Answer 10

White precipitate

Question 11

Sulfate test (SO4^2-)

Answer 11

Acidly, then add aqueous barium nitrate

Question 12

Sulfate result (SO4^2-)

Answer 12

White precipitate

Question 13

Sulfite test (SO3^2-)

Answer 13

Add dilute hydrochloric acid

• warm gently
• test for presence of sulfur dioxide

Question 14

Sulfite result (SO3^2-)

Answer 14

Sulfur dioxide produced will turn acidified aqueous potassium manganate (Vll) from PURPLE to COLOURLESS