Advertisements
Advertisements
प्रश्न
Describe the method of separating a mixture containing common salt, sand and ammonium chloride.
Advertisements
उत्तर
The method of separating a mixture containing common salt, sand and ammonium chloride employs three processes, i.e., sublimation followed by filtration and evaporation. To separate ammonium chloride from the mixture, we should first follow sublimation. In the process, ammonium chloride gets sublimed and a mixture of sand and salt is left behind.
To separate salt from the mixture, we should put the mixture in water. Salt will get dissolved in water and the insoluble sand will be obtained by filtration.
Lastly, salt is separated by evaporating the filtrate, where all the water evaporates leaving behind solid salt.
APPEARS IN
संबंधित प्रश्न
Name the scientist who studied the movement of pollen grains suspended in water through a microscope. What is this phenomenon known as?
Define matter. Give four examples of matter.
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.
During respiration, glucose and oxygen enter our body cells and waste products carbon dioxide and water leave the body cells by the process of :
Which of the following is a mixture ?
Salt, Air, Water, Alum, Sugar
Name two solid, two liquid and two gaseous elements at the room temperature.
Give reason why copper metal is used for making electric wires.
Name a metal which is yellow in colour.
How much water should be mixed with 12 mL of alcohol so as to obtain 12 % alcohol solution ?
How will you differentiate between a suspension and a colloid ?
Tincture of iodine has antiseptic properties. This solution is made by dissolving :
Name the property of one of the constituents which can be used to separate a mixture of salt and iodine
How would you obtain sodium chloride from a mixture of sodium chloride and sulphur without using water ?
Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.
All the matter made of ______.
A standard sheet of paper is about ______ of atoms thick
You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster?
______ is so hard that it can scratch glass.
Liquids have ______.
Which statement is not correct for a mixture
