Okay, everyone. What do we know about chlorine? Chlorine is probably a chemical disinfectant that you are pretty familiar with. So chlorine, which we commonly call bleach, is a common household cleaner. So let's have a look at our answers. Answer choice a says, chlorine readily reacts with organics to produce potentially carcinogenic trihalomethanes. Now, you may not know exactly what is created through the reaction of chlorine and organic molecules, But the key takeaway here is that they make toxic molecules. The combination of chlorine and organic molecules can make carcinogenic molecules, which cause cancer and other toxic molecules. So yes, this is true. Answer choice b says, chlorine is effective, inexpensive, inexpensive, disinfectant, able to destroy all types of microorganisms. Chlorine is very effective and it's very inexpensive, which is why it's a household cleaner. Now given enough time, it does require a lot of time, but it can kill almost every single microorganism and microbe that we have to deal with. So this is also true. Answer choice c says is unaffected. Chlorine is unaffected by the presence of organic material. We know that it's not unaffected because we know that it reacts violently with organic material and creates really toxic substances. So this is not true. Answer choice d says chlorine is ineffective when diluted. This is also not true. It's actually very effective when diluted and the chlorine that we normally use is a diluted version, meaning that it's mixed with mostly water and it works perfectly fine. So this is not true. So the correct answers here are a and b. So the correct answer is answer choice e. Okay, everyone. Let's move on to our next video.

Table of contents

1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

11. Controlling Microbial Growth

Liquid Chemicals: Halogens

Microbiology

11. Controlling Microbial Growth

Liquid Chemicals: Halogens

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Multiple Choice

Chlorine:

Readily reacts with organics to produce potentially carcinogenic trihalomethanes.

Is an effective, inexpensive, disinfectant able to destroy all types of microorganisms.

Is unaffected by the presence of organic material.

Is ineffective when diluted.

A and B.

C and D.

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Verified step by step guidance

Understand the properties of chlorine as a disinfectant. Chlorine is known for its ability to kill a wide range of microorganisms, making it an effective disinfectant.

Recognize the chemical reactions involving chlorine. Chlorine can react with organic compounds to form trihalomethanes, which are potentially carcinogenic.

Evaluate the statement about chlorine's effectiveness in the presence of organic material. Chlorine's effectiveness can be reduced by organic matter, contrary to the statement that it is unaffected.

Consider the impact of dilution on chlorine's effectiveness. Chlorine becomes less effective when diluted, which contradicts the statement that it is ineffective when diluted.

Identify the correct statements based on the analysis. Statements A and B are correct: chlorine reacts with organics to produce trihalomethanes and is an effective disinfectant. Statements C and D are incorrect.