What do you know how we identify ions?
Identification of Ions by Chemical and Spectroscopic Means Quiz
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Question 1 of 22
1. Question
What flame colour is produced by lithium compounds in a flame test?
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Question 2 of 22
2. Question
What flame colour is produced by sodium compounds in a flame test?
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Question 3 of 22
3. Question
What flame colour is produced by potassium compounds in a flame test?
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Question 4 of 22
4. Question
What flame colour is produced by calcium compounds in a flame test?
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Question 5 of 22
5. Question
What flame colour is produced by copper compounds in a flame test?
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Question 6 of 22
6. Question
Select all the metal ions that produce a white precipitate when sodium hydroxide solution is added.
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Question 7 of 22
7. Question
Which metal hydroxide precipitate dissolves in excess sodium hydroxide solution?
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Question 8 of 22
8. Question
What is the colour of the precipitate formed when sodium hydroxide is added to a solution containing copper(II) ions?
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Question 9 of 22
9. Question
What is the colour of the precipitate formed when sodium hydroxide is added to a solution containing iron(II) ions?
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Question 10 of 22
10. Question
What is the colour of the precipitate formed when sodium hydroxide is added to a solution containing iron(III) ions?
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Question 11 of 22
11. Question
Carbonates react with dilute acids to produce which gas?
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Question 12 of 22
12. Question
What test can be used to confirm the presence of carbon dioxide gas?
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Question 13 of 22
13. Question
Halide ions in solution produce precipitates with silver nitrate solution in the presence of dilute nitric acid. What is the colour of the precipitate formed with chloride ions?
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Question 14 of 22
14. Question
What is the colour of the precipitate formed when bromide ions react with silver nitrate solution in the presence of dilute nitric acid?
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Question 15 of 22
15. Question
What is the colour of the precipitate formed when iodide ions react with silver nitrate solution in the presence of dilute nitric acid?
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Question 16 of 22
16. Question
What is the colour of the precipitate formed when iodide ions react with silver nitrate solution in the presence of dilute nitric acid?
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Question 17 of 22
17. Question
Sulfate ions in solution produce a white precipitate with barium chloride solution in the presence of which acid?
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Question 18 of 22
18. Question
Which of the following are advantages of instrumental methods compared with chemical tests? Select all that apply.
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Question 19 of 22
19. Question
Flame emission spectroscopy is used to analyse which type of ions in solution?
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Question 20 of 22
20. Question
In flame emission spectroscopy, the sample is put into a flame and the light given out is passed through a what?
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Question 21 of 22
21. Question
Use some of the following answers to fill in the blanks:
Spectroscope, line spectrum, concentration, metal ions-
Flame emission spectroscopy produces a that can be analysed to identify in the solution and measure their .
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Question 22 of 22
22. Question
Match each metal ion to the colour of the precipitate formed when sodium hydroxide is added.
Sort elements
- Blue precipitate
- Brown precipitate
- Copper(II) ions
- Iron(III) ions
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