Tests for Anions

Question 0

Sulphate - SO42-

Answer 0

• Add dilute hydrochloric acid.
• Add Barium chloride.
• White precipitate (barium chloride) forms.

Question 1

Carbonate - CO32-

Answer 1

• Add dilute hydrochloric acid.

- Carbon dioxide given off, gives white precipitate in limewater.

Question 2

Chloride - Cl-

Answer 2

• Add dilute nitric acid.
• Add silver nitrate solution.
• White precipitate (silver chloride) forms.

Question 3

Bromide - Br-

Answer 3

• Add dilute nitric acid.
• Add silver nitrate solution.
• Cream precipitate (silver bromide) forms.

Question 4

Iodide - I-

Answer 4

• Add dilute nitric acid.
• Add silver nitrate solution.
• Yellow precipitate (silver iodide) forms.