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

Question 1 of 10

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

Question 2 of 10

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

Question 3 of 10

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

Question 4 of 10

5. In the test for sulfate ions, what result shows they are present?

Question 5 of 10

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

Question 6 of 10

7. Give the name of the brown precipitate formed when sodium hydroxide is added to a solution containing Fe³⁺

Question 7 of 10

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

Question 8 of 10

9. Which two substances are added when testing for halide ions, and what is the result if they are present?

Question 9 of 10

10. In the test for carbonate ions, what is added to the sample?

Question 10 of 10


 

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