Negative Ions

Question 1

How do you test for Carbonates?

Answer 1

React with dilute acids to form carbon dioxide

Question 2

How do you test for Halide Ions?

Answer 2

React with Silver Nitrate (ACIDIFIED with Nitric Acid) to form a White(Chlorine) / Cream(Bromine) / Yellow(Iodine) precipitate.

Question 3

How do you test for Sulphate Ions?

Answer 3

React with Barium Chloride and Hydrochloric Acid to produce a white precipitate

Question 4

What colour precipitate is formed when Chlorine reacts with Silver Nitrate (ACIDIFIED with Nitric Acid)?

Answer 4

White

Question 5

What colour precipitate is formed when Bromine reacts with Silver Nitrate (ACIDIFIED with Nitric Acid)?

Answer 5

Cream

Question 6

What colour precipitate is formed when Iodine reacts with Silver Nitrate (ACIDIFIED with Nitric Acid)?

Answer 6

Yellow