1. When testing for halide ions, after silver nitrate is added to a sample a cream precipitate is formed. Give the formula of the anion present in the sample.

Question 1 of 10

2. When NaOH is added to a sample, a brown precipitate forms. What cation was present in the sample?

Question 2 of 10

3. In a flame test, a lilac colour is seen. Give the formula of the cation which is present.

Question 3 of 10

4. What is the test for copper (II) ions (Cu²⁺) and what is the result?

Question 4 of 10

5. Describe how you would carry out a flame test

Question 5 of 10

6. How are calcium ions identified, and what is the result?

Question 6 of 10

7. In a flame test, a blue-green colour is seen. Give the formula of the cation which is present.

Question 7 of 10

8. What is the test for iron (II) ions (Fe²⁺) and what is the result?

Question 8 of 10

9. In the test for sulfate ions, what two substances are added to the sample?

Question 9 of 10

10. When testing a sample for ions, hydrochloric acid and then barium chloride are added to a sample. A white precipitate forms. What ions have been shown to be present?

Question 10 of 10