Advertisements
Advertisements
प्रश्न
The technique which is used to separate particles of a solid suspended in a liquid quickly is called :
विकल्प
decantation
centrifugation
sedimentation
filtration
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Differentiate between an atom and a molecule.
What are the two conditions for the interconversion of states of matter ?
Fill in the blank
Liquids have a definite ______
An inflated balloon full of air goes down slowly (becomes smaller and smaller slowly) even though the knot at the mouth of the balloon is airtight. And after a week all the air has escaped from the balloon. Explain how the air particles got out of the balloon.
Name a non-metal which is a good conductor of electricity.
What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?
What are (i) metals (ii) non-metals, and (iii) metalloids ? Give two examples each of metals, non-metals and metalloids.
Calculate the concentration of a solution which contains 2.5 g of salt dissolved in 50 g of water.
Which of the following is not an emulsion ?
Name the process you would use to separate a mixture of water and alcohol.
Fill in the following blanks with suitable words :
A mixture of kerosene and petrol can be separated by .....................
What's the solution?
We need to rub salt on a corncob, but only salt crystals are available.
Write a few lines on the blackboard with a chalk. Now observe the chalk. What changes do you see in the chalk?
Asmita went to buy an earthen pot. There she saw many things kept for sale.
From what substance has the potter made all the things?
The property which allows the metals to be hammered into their sheets is ______.
Why wires cannot be drawn from materials such as stone or wood?
State whether true or false. If false, correct the statement.
Oil and water are immiscible with each other.
Evaporation is always accompanied by ______ in temperature.
Define the term matter.
