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प्रश्न
Name one pair of liquids which can be separated by using a separating funnel.
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उत्तर
Kerosene and water are two immiscible liquids which can be separated by using a separating funnel.
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संबंधित प्रश्न
Explain why, osmosis can be considered to be a special kind of diffusion. Classify the following into
(i) osmosis, and (ii) diffusion :
- swelling up of a raisin on keeping in water
- spreading of virus on sneezing
- earthworm dying on coming in contact with common salt
- shrinking of grapes kept in thick sugar syrup
- preserving of pickles in salt
- spreading of smell of cake being baked in the kitchen
- aquatic animals using oxygen dissolved in water during respiration
Fill in the following blanks with suitable words :
The elements which are sonorous are called ..........................
Explain why, hydrogen and oxygen are considered elements whereas water is not considered an element.
Classify the following into metals, non-metals and metalloids:
Silicon, Mercury, Diamond, Sulphur, Iodine, Germanium, Sodium, Carbon, Magnesium, Copper, Boron, Helium
Which one of the following is not a metalloid ?
Which of the following is a sol ?
Shaving cream, Milk, Fog, Soap solution, Hairspray
Classify the following into true solutions and colloidal solutions:
Ink, Salt solution, Starch solution, Blood, Sugar solution
Define the emulsion. Give one example.
Name the process by which common salt is purified.
Describe the method of separating a mixture containing common salt, sand and ammonium chloride.
Describe the various steps involved in the separation of iodine, iron filings and salt from a mixture.
How will you separate a mixture of iron filings, chalk powder and common salt ?
The technique which is used to separate particles of a solid suspended in a liquid quickly is called :
Which of the following cannot be separated from air by the process of fractional distillation ?
Which one of the following scrap metal cannot be separated by magnetic separation ?
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.
State whether true or false. If false, correct the statement.
Oil and water are immiscible with each other.
Intermolecular space is maximum in ______.
The movement of particles in liquids is ______.
Define the term matter.
