Tests for Halides using Silver Nitrate

Question 1

How would you test for halides?

Answer 1

1. Add nitric acid
2. Add silver nitrate

Question 2

Why should you add nitric acid first when testing for halides?

Answer 2

To react with carbonate ions and prevent them from interfering with the precipitate colours.

Question 3

What colour precipitate do chloride ions (Cl^-) form when reacting with silver nitrate (AgNO₃)?

Answer 3

White

Question 4

What colour precipitate do bromide ions (Br^-) form when reacting with silver nitrate (AgNO₃)?

Answer 4

Cream

Question 5

What colour precipitate do iodide ions (I^-) form when reacting with silver nitrate (AgNO₃)?

Answer 5

Yellow