Test For Ions

Question 1

Flame test: what colour does lithium burn with?

Answer 1

Crimson red

Question 2

Sodium flame test?

Answer 2

Yellow- orange flame

Question 3

Potassium flame test?

Answer 3

Lilac

Question 4

Calcium flame test?

Answer 4

Brick- red

Question 5

With sodium hydroxide: colour of precipitate = blue?

Answer 5

Copper

Question 6

Green with NaOH?

Answer 6

Iron (II)

Question 7

Reddish brown with naoh?

Answer 7

Fe (III)

Question 8

How can you test fo ammonia gas?

Answer 8

Turns damp red litmus paper blue

Question 9

How to test for carbonates? (Negative)

Answer 9

Add hydrochloric acid and co2 should be given off

Test for co2 using limewater

Question 10

How to get for sulfates? (Negative)

Answer 10

Using hcl and barium chloride
Hcl to get rid of any ions before test is done
Barium chloride - if white precipitate forms it means the original compound was a sulfate

Question 11

How to test for halides?

Answer 11

Using nitric acid and silver nitrate

Question 12

Chloride ion?

Answer 12

White precipitate

Question 13

Bromide ion?

Answer 13

Cream precipitate

Question 14

Iodide ion?

Answer 14

Yellow precipitate