मराठी

The Technique Which is Used to Separate Particles of a Solid Suspended in a Liquid Quickly is Called : - Science

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प्रश्न

The technique which is used to separate particles of a solid suspended in a liquid quickly is called :

पर्याय

  • decantation

  • centrifugation

  • sedimentation

  • filtration

MCQ

उत्तर

centrifugation

Centrifugation is a process, in which suspended particles are separated from the solvent. In this process, the solution is rotated at a high rate in a centrifuge thereby separating the solute particles and the solvent.

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पाठ 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ १०७]

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लखमीर सिंह Chemistry [English] Class 9
पाठ 2 Is Matter Around Us Pure
Very Short Answers | Q 77 | पृष्ठ १०७

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

Fill in the blank :

The state of matter with definite volume and definite shape is called______


Which of the following materials fall in the category of a “pure substance”?

  1. Ice
  2. Milk
  3. Iron
  4. Hydrochloric Acid
  5. Calcium oxide
  6. Mercury
  7. Brick
  8. Wood
  9. Air

Explain why, osmosis can be considered to be a special kind of diffusion. Classify the following into

(i) osmosis, and (ii) diffusion  :

  1. swelling up of a raisin on keeping in water
  2. spreading of virus on sneezing
  3. earthworm dying on coming in contact with common salt
  4. shrinking of grapes kept in thick sugar syrup
  5. preserving of pickles in salt
  6. spreading of smell of cake being baked in the kitchen
  7. aquatic animals using oxygen dissolved in water during respiration

Name a non-metal which is a good conductor of electricity.


What is meant by saying that non-metals are brittle ?


Which of the following are not compounds ?

Chlorine gas, Potassium chloride, Iron powder, Iron sulphide, Aluminium foil, Iodine vapour, Graphite, Carbon monoxide, Sulphur powder, Diamond


On the basis of composition of matter, milk is considered to be :


A solution contains 5.6 mL of alcohol mixed with 75 mL of water. Calculate the concentration of this solution.


Name the property of one of the constituents which can be used to separate a mixture of salt and iodine


What is the general name of the process by which tea-leaves are separated from prepared tea ?


Name the process by which all the dye can be recovered from black ink.


How will you separate a mixture of iron filings and powdered carbon ?


How is scrap iron separated from a heap of waste materials in factories?


How is cream separated from milk ?


How is water purified on a large scale at water works ? Explain with the help of a labelled diagram. Name the substance which is added to kill germs in the drinking water supply ?


What is fractional distillation ? What is the use of fractionating column in fractional distillation ?


Solids possess very high kinetic energy.


Liquids cannot be compressed and they have fixed volume.


Intermolecular space is maximum in ______.


Define the term matter.


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