Lesson 5.8.2.4
5.8.2.4 Test for chlorine Quiz: AQA Combined Science, Unit 15
20 questions
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Lesson 5.8.2.4, Test for chlorine: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 15: Chemical analysis, written with Revision Ninja.
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The 20 questions
-
The test for chlorine uses:
- Dry litmus paper
- Damp litmus paper
- Limewater solution
- A glowing splint
-
What happens when damp blue litmus paper is placed in chlorine?
- Turns green
- Remains blue
- Turns red
- Bleached white
-
What does bleaching litmus paper mean?
- Increases pH
- Neutralises acid
- Removes colour
- Adds moisture
-
Which gas bleaches damp litmus?
- Chlorine
- Hydrogen
- Oxygen
- Carbon dioxide
-
Why must litmus paper be damp for the chlorine test?
- To speed heating
- To block oxygen
- Water is needed
- To cool the gas
-
A gas bleaches damp litmus. The gas is:
- Hydrogen
- Carbon dioxide
- Oxygen
- Chlorine
-
The chlorine test result is:
- Milky limewater
- A bleaching of litmus
- A relit glowing splint
- A loud pop sound
-
The colour of damp litmus in chlorine changes to:
- Red
- Blue
- White
- Green
-
What is the key observation when testing for chlorine gas using damp litmus paper?
- Bleached white
- Turns red
- Extinguishes splint
- Turns green
-
Why must the test for chlorine gas be conducted with care?
- It is toxic
- It is radioactive
- It is flammable
- It is explosive
-
Which observation does NOT indicate the presence of chlorine gas?
- Litmus paper bleaches
- Paper turns white
- Damp litmus changes
- Limewater turns milky
-
What shows a positive test result for chlorine using damp litmus paper?
- Bleaching paper
- Squeaky pop
- Turning limewater cloudy
- Relighting splint
-
Which indicator is used for the chlorine test in the spec?
- Litmus paper
- Phenolphthalein only
- Starch solution
- Universal indicator solution
-
Chlorine gas is:
- A colourless liquid
- A black powder
- A solid metal
- A yellow-green gas
-
Chlorine can be identified because it:
- Is a bleaching gas
- Pops with a flame
- Clouds limewater
- Relights a splint
-
A litmus strip before and after exposure to chlorine changes from:
- Coloured to green
- Coloured to white
- White to black
- White to red
-
How does litmus indicator paper react when exposed to chlorine gas?
- Stays deep red
- Turns bright green
- Bleaches white
- Turns dark blue
-
The chlorine test is best described as:
- A qualitative test
- A gravimetric test
- An instrumental test
- A quantitative test
-
Which test confirms the presence of chlorine gas?
- Bleaches litmus paper
- Relights glowing splint
- Squeaky pop test
- Turns limewater milky
-
What is the immediate action when litmus paper bleaches in a gas test?
- Identify oxygen gas
- Identify carbon dioxide
- Identify chlorine gas
- Identify hydrogen gas
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