1. What is the test for iron (III) ions (Fe³⁺) and what is the result?

Question 1 of 10

2. 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 2 of 10

3. Describe how you would test for carbonate ions (CO₃²⁻) and what is the result if they are present?

Question 3 of 10

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

Question 4 of 10

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

Question 5 of 10

6. In a flame test, a orange-red colour is seen. Give the formula of the cation which is present.

Question 6 of 10

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

Question 7 of 10

8. In a flame test, why is hydrochloric acid used?

Question 8 of 10

9. How are sodium ions identified, and what is the result?

Question 9 of 10

10. Give the name of the blue precipitate formed when sodium hydroxide is added to a solution containing Cu²⁺

Question 10 of 10