Advertisements
Advertisements
Question
What is centrifugation ? Also write the principle on which it works.
Advertisements
Solution
- Centrifugation : It is a technique used to speed up sedimentation of fine particles suspended in a solid-liquid mixture.
- Principle : The principle of centrifugation is that an object, when spun at high speed, experiences an outward force away from the centre of rotation.
APPEARS IN
RELATED QUESTIONS
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Filtration
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
By using a separating funnel
Fill in the blank:
________ and _______ are pure substances.
Fill in the blank:
_________ is a process to obtain a very pure form of a solid dissolved in a liquid.
Give one word answer
The process of transferring the clean liquid after the solid settles at the bottom of the container
Fill in the blank
A pure substance has definite _______ and constant _________.
Match the columns.
| Column A | Column B |
| 1. To separate grain from chaff | a. filtration |
| 2. To seperat sawdust from water | b. sedimentation and decantation |
| 3. To separate iodine from sodium chloried | c. winnowing |
| 4. To separate iron fillings from sand | d. sublimation |
| 5.It is used to separate sand and water | e.magnetic separation |
| f. handpiicking |
Differentiate between the following.
solution and suspension
How can you separate iron metal from non-magnetic impurities ?
Write the differences between elements and compounds and give an example for each.
