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Questions and Answers
Which of the following statements about halogens is NOT correct?
Which of the following statements about halogens is NOT correct?
- Halogens are not effective components of disinfectants and antiseptics. (correct)
- Halogens are a group of nonmetallic elements with similar chemical properties.
- Halogens are microbicidal and not just microbistatic.
- Halogens include fluorine, bromine, chlorine, and iodine.
What is the primary mode of action of chlorine in microbial control?
What is the primary mode of action of chlorine in microbial control?
- Chlorine kills almost all microorganisms, including endospores, within 30 minutes.
- Chlorine damages the structure of DNA, RNA, and fatty acids. (correct)
- Chlorine compounds are highly stable and effective even in the presence of light, alkaline pH, and organic matter.
- Chlorine penetrates the cells of microorganisms.
Which of the following statements about the use of iodine as a chemical agent is correct?
Which of the following statements about the use of iodine as a chemical agent is correct?
- Iodine is less effective than chlorine and can only kill certain classes of microorganisms.
- Iodine's mode of action is different from that of chlorine, as it is less susceptible to inactivation by organic material.
- Iodine is a colorless element that forms a clear solution when dissolved in water.
- Iodine is a pungent blue-black element that forms a brown-colored solution when dissolved in water. (correct)
What is the main reason for the decreased effectiveness of chlorine compounds in microbial control?
What is the main reason for the decreased effectiveness of chlorine compounds in microbial control?
Which of the following statements about the effectiveness of iodine as a chemical agent is correct?
Which of the following statements about the effectiveness of iodine as a chemical agent is correct?
What is the key difference between the effectiveness of chlorine and iodine as chemical agents for microbial control?
What is the key difference between the effectiveness of chlorine and iodine as chemical agents for microbial control?
When did the chemical control of microbes likely emerge as a serious science?
When did the chemical control of microbes likely emerge as a serious science?
How many different antimicrobial chemical agents are currently manufactured?
How many different antimicrobial chemical agents are currently manufactured?
Which of the following is NOT a desirable property when choosing a microbicidal chemical?
Which of the following is NOT a desirable property when choosing a microbicidal chemical?
What is the purpose of a deodorizing chemical agent in microbial control?
What is the purpose of a deodorizing chemical agent in microbial control?
Which of the following is NOT mentioned as a form in which chemical agents for microbial control can exist?
Which of the following is NOT mentioned as a form in which chemical agents for microbial control can exist?
What is the total number of levels of chemical decontamination procedures mentioned?
What is the total number of levels of chemical decontamination procedures mentioned?
What is the primary mechanism of action for aldehydes like glutaraldehyde?
What is the primary mechanism of action for aldehydes like glutaraldehyde?
What is the sporicidal activity of hydrogen peroxide?
What is the sporicidal activity of hydrogen peroxide?
What is the primary use of isopropyl alcohol mentioned in the text?
What is the primary use of isopropyl alcohol mentioned in the text?
Which of the following is NOT a property of hydrogen peroxide mentioned in the text?
Which of the following is NOT a property of hydrogen peroxide mentioned in the text?
What is the primary mechanism of action for aldehydes like glutaraldehyde?
What is the primary mechanism of action for aldehydes like glutaraldehyde?
Which of the following is a characteristic of aldehydes like glutaraldehyde?
Which of the following is a characteristic of aldehydes like glutaraldehyde?
Which of the following statements is true about high-level germicides?
Which of the following statements is true about high-level germicides?
What is the primary function of intermediate-level germicides?
What is the primary function of intermediate-level germicides?
Which of the following is NOT a factor that affects the germicidal activities of chemical agents?
Which of the following is NOT a factor that affects the germicidal activities of chemical agents?
What is the purpose of low-level disinfectants?
What is the purpose of low-level disinfectants?
Which of the following statements about the germicidal activities of chemical agents is true?
Which of the following statements about the germicidal activities of chemical agents is true?
Which of the following statements is true regarding the use of chemical agents for decontamination?
Which of the following statements is true regarding the use of chemical agents for decontamination?
What is one of the main advantages of using gaseous sterilants and disinfectants?
What is one of the main advantages of using gaseous sterilants and disinfectants?
What is one of the major disadvantages of using ethylene oxide as a sterilant?
What is one of the major disadvantages of using ethylene oxide as a sterilant?
What is the main reason why soaps alone are considered weak microbicides?
What is the main reason why soaps alone are considered weak microbicides?
Which of the following is NOT a characteristic of detergents and soaps as chemical agents?
Which of the following is NOT a characteristic of detergents and soaps as chemical agents?
What is the main reason why ethylene oxide is considered a carcinogen?
What is the main reason why ethylene oxide is considered a carcinogen?
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