Anion And Cation Tests

Question 1

What flame does lithium produce when burnt?

Answer 1

Red

Question 2

What colour is the flame when sodium is burnt?

Answer 2

Orange

Question 3

What colour does the flam turn when potassium is burnt?

Answer 3

Lilac

Question 4

What colour does the flame turn when calcium is burnt?

Answer 4

Red/orange

Question 5

What colour does the iron (II) turn when you add sodium hydroxide?

Answer 5

Green precipitate

Question 6

What colour does the iron (III) turn when you add sodium hydroxide?

Answer 6

Brown precipitate

Question 7

What colour does the copper turn when you add sodium hydroxide?

Answer 7

Blue precipitate

Question 8

What colour does red litmus paper turn when NaOH is added to ammonia?

Answer 8

Blue

Question 9

What happens when you add nitric acid to a carbonate?

Answer 9

You see bubbles (carbon dioxide)

Question 10

How do you test for a carbonate?

Answer 10

Add nitric acid, collect bubbles and bubble through limewater (CO2)

Question 11

How do you test for a sulphate?

Answer 11

Add nitric acid, then add barium nitrate
Makes a white precipitate

Question 12

How do you test for halides?

Answer 12

Add nitric acid, add silver nitrate

Question 13

What solid does chloride produce?

Answer 13

White

Question 14

What solid does bromine produce?

Answer 14

Cream

Question 15

What solid colour does iodine produce?

Answer 15

Yellow