How much do you know about the element chlorine? Here’s a ten question quiz you can take to test your knowledge of chlorine facts.
If you need a little pre-quiz review, read up on Chlorine Facts.
How Much Do You Know About Chlorine?
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Test Your Knowledge of Chlorine Facts
Liquid chlorine in a flask. Credit: Workingclass91/Creative Commons
How much do you know about the element chlorine? Here’s a ten question quiz you can take to test your knowledge of chlorine facts.
If you need a little pre-quiz review, read Chlorine Facts.
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Question 1 of 10
1. Question
Chlorine has a distinctive color in its normal gaseous form. That color is:
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Chlorine gas is a yellowish green color.
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Question 2 of 10
2. Question
Chlorine is a member of which element group?
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Chlorine is an example of a halogen. Other halogens include fluorine and bromine.
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Question 3 of 10
3. Question
What is the atomic number of chlorine (number of protons per atom)?
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The atomic number of chlorine is 17.
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Question 4 of 10
4. Question
What is the element symbol for chlorine?
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Chlorine’s element symbol is Cl.
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Question 5 of 10
5. Question
Chlorine has two stable isotopes.
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Yes, there are 2 stable isotopes for the element chlorine.
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Question 6 of 10
6. Question
The name chlorine comes from the Greek word ‘khloros’ meaning:
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Chlorine gets its name from its distinctive color.
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Question 7 of 10
7. Question
Chlorine is added to municipal water supplies to reduce tooth decay.
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The reason chlorine is added to water is because it is a potent oxidizing agent that helps kill bacteria and other pathogens.
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Question 8 of 10
8. Question
Chlorine is the third most abundant element in the Earth’s oceans.
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Oxygen and hydrogen are the most abundant elements in the ocean (for water), although hydrogen does not account for much mass, compared to heavier elements. Sodium chloride (salt) is the next most abundant compound in seawater, so chlorine is the 3rd most common element.
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Question 9 of 10
9. Question
Pure chlorine gas is:
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Chlorine gas is heavier than air, so it sinks. Escape exposure to the gas by seeking higher ground/avoiding low-lying areas.
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Question 10 of 10
10. Question
Which commercial process is used to produce chlorine?
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Chlorine may be produced by electrolysis of salt.
One interesting chlorine element fact is that the liquid is yellow. Credit: Workingclass91/Creative Commons