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प्रश्न
Fill in the following blanks with suitable words :
The gases of air can be separated by fractional distillation of liquid air because they have different..............
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उत्तर
The gases of air can be separated by fractional distillation of liquid air because they have different boiling points.
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संबंधित प्रश्न
Fill in the blank
Liquids have a definite ______
Write true or false for each statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
Which one is a kind of matter:
Describe in your own words, what happens to the particles when salt dissolves in water.
Bromine and air take about 15 minutes to diffuse completely but bromine diffuses into a vacuum very rapidly. Why is this so?
During respiration, glucose and oxygen enter our body cells and waste products carbon dioxide and water leave the body cells by the process of :
Name two solid, two liquid and two gaseous elements at the room temperature.
Which one of the following is not a metalloid ?
Which of the two will scatter light : soap solution or sugar solution ? Why ?
Which of the following contains less solute at a given temperature and pressure ? Unsaturated solution or Saturated solution.
Fill in the following blank :
Milk is a .................... solution but vinegar is a .................... solution.
Explain what happens when a beam of light is passed through a colloidal solution.
Define Sol and give one example.
What is meant by a solution?
Which of the following represents the solubility of sugar in water at 20°C ?
Fill in the following blanks with suitable words :
The separation of liquids by fractional distillation is based on the difference in their .....................
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 ?
There are three liquids A, B and C, all having different densities and different boiling points. Liquids A and C are organic in nature whereas liquid B is considered to be inorganic. When liquids A and B are put together in a container, they form a single layer. On the other hand, when, liquids B and C are mixed, they form two separate layers :
(a) Which process will you use to separate a mixture of A and B ?
(b) Which method will you use to separate a mixture of B and C ?
(c) Name the liquids which would behave like (i) A (ii) B and (iii) C.
Evaporation does form bubbles.
______ is used for industrial refrigeration and transporting frozen food.
