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Which of the following statements given about emulsions is incorrect?
- a)The droplets in emulsions are often negatively charged and can be precipitated by electrolytes
- b)Emulsion can be diluted with any amount of the dispersed liquid. On the otherhand, the dispersion medium when mixed, forms a separate layer
- c)Emulsions can be broken into constituent liquids by heating, freezing, centrifuging, etc
- d)Emulsions also show Brownian movement and Tyndall effect
Correct answer is option 'B'. Can you explain this answer?
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Which of the following statements given about emulsions is incorrect?a...
Emulsions can be diluted with any amount of the dispersion medium. On the other hand, the dispersed liquid when mixed, forms a separate layer.
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Which of the following statements given about emulsions is incorrect?a...
Incorrect Statement: Emulsion can be diluted with any amount of the dispersed liquid. On the other hand, the dispersion medium when mixed, forms a separate layer.
Explanation:
Emulsions are colloidal systems that consist of two immiscible liquids, typically oil and water, where one liquid is dispersed as small droplets in the other liquid. The dispersed phase refers to the droplets of one liquid, while the continuous phase refers to the medium in which the droplets are dispersed.
Dilution of Emulsions:
When an emulsion is diluted, it refers to the addition of more of the continuous phase to the system. This can be done by adding more of the dispersion medium. However, it is important to note that emulsions have a limited capacity for accepting the dispersed liquid. Beyond a certain point, the excess dispersed liquid will not be able to form stable droplets and will separate from the system, resulting in phase separation. Therefore, emulsions cannot be diluted with any amount of the dispersed liquid.
Separation of Emulsions:
Emulsions can be broken or separated into their constituent liquids through various methods such as heating, freezing, centrifuging, etc. These methods disrupt the stability of the emulsion and allow the droplets to coalesce and separate from the continuous phase.
Other Properties of Emulsions:
1. Charge of Emulsion Droplets: The droplets in emulsions can often carry a charge, which is typically negative. This charge arises due to the presence of surfactants or emulsifying agents on the droplet surfaces. The charge on the droplets can be neutralized or reversed by the addition of electrolytes, leading to the precipitation or coagulation of the emulsion.
2. Brownian Movement and Tyndall Effect: Emulsions, like other colloidal systems, exhibit Brownian movement and the Tyndall effect. Brownian movement refers to the random motion of the dispersed droplets due to collisions with molecules of the continuous phase. The Tyndall effect occurs when light is scattered by the dispersed droplets, making the emulsion appear cloudy or milky.
In conclusion, the incorrect statement is option B, which states that emulsions can be diluted with any amount of the dispersed liquid. This is incorrect because emulsions have a limited capacity for accepting the dispersed liquid, beyond which phase separation occurs.
Explanation:
Emulsions are colloidal systems that consist of two immiscible liquids, typically oil and water, where one liquid is dispersed as small droplets in the other liquid. The dispersed phase refers to the droplets of one liquid, while the continuous phase refers to the medium in which the droplets are dispersed.
Dilution of Emulsions:
When an emulsion is diluted, it refers to the addition of more of the continuous phase to the system. This can be done by adding more of the dispersion medium. However, it is important to note that emulsions have a limited capacity for accepting the dispersed liquid. Beyond a certain point, the excess dispersed liquid will not be able to form stable droplets and will separate from the system, resulting in phase separation. Therefore, emulsions cannot be diluted with any amount of the dispersed liquid.
Separation of Emulsions:
Emulsions can be broken or separated into their constituent liquids through various methods such as heating, freezing, centrifuging, etc. These methods disrupt the stability of the emulsion and allow the droplets to coalesce and separate from the continuous phase.
Other Properties of Emulsions:
1. Charge of Emulsion Droplets: The droplets in emulsions can often carry a charge, which is typically negative. This charge arises due to the presence of surfactants or emulsifying agents on the droplet surfaces. The charge on the droplets can be neutralized or reversed by the addition of electrolytes, leading to the precipitation or coagulation of the emulsion.
2. Brownian Movement and Tyndall Effect: Emulsions, like other colloidal systems, exhibit Brownian movement and the Tyndall effect. Brownian movement refers to the random motion of the dispersed droplets due to collisions with molecules of the continuous phase. The Tyndall effect occurs when light is scattered by the dispersed droplets, making the emulsion appear cloudy or milky.
In conclusion, the incorrect statement is option B, which states that emulsions can be diluted with any amount of the dispersed liquid. This is incorrect because emulsions have a limited capacity for accepting the dispersed liquid, beyond which phase separation occurs.
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Which of the following statements given about emulsions is incorrect?a)The droplets in emulsions are often negatively charged and can be precipitated by electrolytesb)Emulsion can be diluted with any amount of the dispersed liquid. On the otherhand, the dispersion medium when mixed, forms a separate layerc)Emulsions can be broken into constituent liquids by heating, freezing, centrifuging, etcd)Emulsions also show Brownian movement and Tyndall effectCorrect answer is option 'B'. Can you explain this answer?
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Which of the following statements given about emulsions is incorrect?a)The droplets in emulsions are often negatively charged and can be precipitated by electrolytesb)Emulsion can be diluted with any amount of the dispersed liquid. On the otherhand, the dispersion medium when mixed, forms a separate layerc)Emulsions can be broken into constituent liquids by heating, freezing, centrifuging, etcd)Emulsions also show Brownian movement and Tyndall effectCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements given about emulsions is incorrect?a)The droplets in emulsions are often negatively charged and can be precipitated by electrolytesb)Emulsion can be diluted with any amount of the dispersed liquid. On the otherhand, the dispersion medium when mixed, forms a separate layerc)Emulsions can be broken into constituent liquids by heating, freezing, centrifuging, etcd)Emulsions also show Brownian movement and Tyndall effectCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements given about emulsions is incorrect?a)The droplets in emulsions are often negatively charged and can be precipitated by electrolytesb)Emulsion can be diluted with any amount of the dispersed liquid. On the otherhand, the dispersion medium when mixed, forms a separate layerc)Emulsions can be broken into constituent liquids by heating, freezing, centrifuging, etcd)Emulsions also show Brownian movement and Tyndall effectCorrect answer is option 'B'. Can you explain this answer?.
Which of the following statements given about emulsions is incorrect?a)The droplets in emulsions are often negatively charged and can be precipitated by electrolytesb)Emulsion can be diluted with any amount of the dispersed liquid. On the otherhand, the dispersion medium when mixed, forms a separate layerc)Emulsions can be broken into constituent liquids by heating, freezing, centrifuging, etcd)Emulsions also show Brownian movement and Tyndall effectCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements given about emulsions is incorrect?a)The droplets in emulsions are often negatively charged and can be precipitated by electrolytesb)Emulsion can be diluted with any amount of the dispersed liquid. On the otherhand, the dispersion medium when mixed, forms a separate layerc)Emulsions can be broken into constituent liquids by heating, freezing, centrifuging, etcd)Emulsions also show Brownian movement and Tyndall effectCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements given about emulsions is incorrect?a)The droplets in emulsions are often negatively charged and can be precipitated by electrolytesb)Emulsion can be diluted with any amount of the dispersed liquid. On the otherhand, the dispersion medium when mixed, forms a separate layerc)Emulsions can be broken into constituent liquids by heating, freezing, centrifuging, etcd)Emulsions also show Brownian movement and Tyndall effectCorrect answer is option 'B'. Can you explain this answer?.
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ample number of questions to practice Which of the following statements given about emulsions is incorrect?a)The droplets in emulsions are often negatively charged and can be precipitated by electrolytesb)Emulsion can be diluted with any amount of the dispersed liquid. On the otherhand, the dispersion medium when mixed, forms a separate layerc)Emulsions can be broken into constituent liquids by heating, freezing, centrifuging, etcd)Emulsions also show Brownian movement and Tyndall effectCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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