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Identify gases with laboratory tests

9th grade (Year 10 in England) · 16 questions · Common Core: NGSS.HS-PS1-2, NGSS.SEP 3 · England: GCSE Combined Science: Chemical analysis

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1
Question 1
Marble chips fizz in acid. Which test identifies the gas made?
- A. a glowing splint relights
- B. a lighted splint pops
- C. limewater turns milky
- D. damp litmus is bleached
2
Question 2
Which gas gives this result: a lighted splint gives a squeaky pop?
- A. hydrogen
- B. oxygen
- C. carbon dioxide
- D. chlorine
3
Question 3
Tests for gases: which statement is NOT true?
- A. Limewater is a solution of calcium hydroxide.
- B. Chlorine turns limewater milky.
- C. Chlorine may turn damp blue litmus red before bleaching it.
- D. Oxygen relights a glowing splint.
4
Question 4
Marble chips fizz in acid. Which test identifies the gas made?
- A. damp litmus is bleached
- B. a lighted splint pops
- C. limewater turns milky
- D. a glowing splint relights
5
Question 5
Which gas gives this result: damp litmus paper is bleached white?
- A. hydrogen
- B. oxygen
- C. carbon dioxide
- D. chlorine
6
Question 6
Tests for gases: which statement is NOT true?
- A. Chlorine may turn damp blue litmus red before bleaching it.
- B. Limewater is a solution of calcium hydroxide.
- C. Oxygen relights a glowing splint.
- D. Chlorine turns limewater milky.
7
Question 7
A gas puts out a lighted splint and turns limewater milky. What is it?
- A. carbon dioxide
- B. oxygen
- C. chlorine
- D. hydrogen
8
Question 8
Which gas gives this result: a glowing splint relights?
- A. hydrogen
- B. oxygen
- C. carbon dioxide
- D. chlorine
9
Question 9
Tests for gases: which statement is NOT true?
- A. Chlorine may turn damp blue litmus red before bleaching it.
- B. Oxygen gives a squeaky pop.
- C. Hydrogen gives a squeaky pop with a lighted splint.
- D. Oxygen relights a glowing splint.
10
Question 10
A gas puts out a lighted splint and turns limewater milky. What is it?
- A. oxygen
- B. carbon dioxide
- C. hydrogen
- D. chlorine
11
Question 11
Which gas gives this result: a glowing splint relights?
- A. hydrogen
- B. oxygen
- C. carbon dioxide
- D. chlorine
12
Question 12
Tests for gases: which statement is NOT true?
- A. Carbon dioxide relights a glowing splint.
- B. Hydrogen gives a squeaky pop with a lighted splint.
- C. Limewater is a solution of calcium hydroxide.
- D. Oxygen relights a glowing splint.
13
Question 13
Why must the chlorine test be done in a fume cupboard?
- A. Chlorine is invisible
- B. Chlorine explodes
- C. Chlorine is radioactive
- D. Chlorine is toxic
14
Question 14
Which gas gives this result: bubbled through limewater, it turns it milky?
- A. hydrogen
- B. oxygen
- C. carbon dioxide
- D. chlorine
15
Question 15
Tests for gases: which statement is NOT true?
- A. Oxygen gives a squeaky pop.
- B. Limewater is a solution of calcium hydroxide.
- C. Oxygen relights a glowing splint.
- D. Hydrogen gives a squeaky pop with a lighted splint.
16
Question 16
A gas puts out a lighted splint and turns limewater milky. What is it?
- A. carbon dioxide
- B. hydrogen
- C. oxygen
- D. chlorine

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Answer key: Identify gases with laboratory tests

1. C. limewater turns milky
2. A. hydrogen
3. B. Chlorine turns limewater milky.
4. C. limewater turns milky
5. D. chlorine
6. D. Chlorine turns limewater milky.
7. A. carbon dioxide
8. B. oxygen
9. B. Oxygen gives a squeaky pop.
10. B. carbon dioxide
11. B. oxygen
12. A. Carbon dioxide relights a glowing splint.
13. D. Chlorine is toxic
14. C. carbon dioxide
15. A. Oxygen gives a squeaky pop.
16. A. carbon dioxide