NEET Exam > NEET Videos > Chemistry Class 12 > Purification of Colloidal Solutions
Purification of Colloidal Solutions Video Lecture | Chemistry Class 12 - NEET
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FAQs on Purification of Colloidal Solutions Video Lecture - Chemistry Class 12 - NEET
| 1. How can I purify a colloidal solution? |  |
Ans. There are several methods to purify a colloidal solution. One commonly used method is dialysis, where the colloidal solution is placed in a dialysis bag and immersed in a solvent. The smaller particles and impurities can pass through the semi-permeable membrane of the bag, while the larger colloidal particles remain inside, resulting in a purified solution.
| 2. Can filtration be used to purify colloidal solutions? | |
Ans. Yes, filtration can be used to purify colloidal solutions. However, it is important to use a filter with a pore size smaller than the colloidal particles to prevent their passage. Filtration can effectively remove larger impurities and some smaller particles, but it may not be sufficient to purify colloidal solutions completely.
| 3. What is coagulation and how does it help in the purification of colloidal solutions? | |
Ans. Coagulation is the process of clumping together or agglomerating colloidal particles to form larger particles, called coagulates. This process helps in the purification of colloidal solutions by making it easier to separate the coagulates from the solution through methods like sedimentation or filtration. Coagulation can be achieved by adding electrolytes or by adjusting the pH of the solution.
| 4. Can centrifugation be used for the purification of colloidal solutions? | |
Ans. Yes, centrifugation can be used for the purification of colloidal solutions. Centrifugation involves subjecting the solution to high-speed rotation, causing the colloidal particles to settle at the bottom of the container. This allows for the separation of the purified solution from the settled particles. Centrifugation is particularly effective for larger and denser colloidal particles.
| 5. Is precipitation a method of purifying colloidal solutions? | |
Ans. Yes, precipitation is a method commonly used for the purification of colloidal solutions. It involves the addition of a precipitating agent, such as an electrolyte or a chemical reagent, to the solution. The precipitating agent causes the colloidal particles to come together and form larger, insoluble aggregates or flocs. These aggregates can then be easily separated from the solution through techniques like filtration or sedimentation, resulting in a purified colloidal solution.
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Nov 21, 2024 Last updated |
Video Description: Purification of Colloidal Solutions for NEET 2024 is part of Chemistry Class 12 preparation.
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