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प्रश्न
Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, L.P.G, carbon- dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
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उत्तर
Solids: Common salt, wax, stone, sugar, coal, butter, copper.
Liquids: milk, mercury, blood, coconut oil.
Gases: Oxygen, L.P.G, carbon- dioxide.
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संबंधित प्रश्न
Name the smallest particle from which matter is made up.
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Give reasons
A red ink drop added to small amount of water in a glass turns the water red in some time.
State the main physical properties of matter.
State the property of the following substance.
Magnesium reacts with dilute hydrochloric acid, liberating hydrogen gas.
Strainer is a kind of sieve which is used to separate a liquid from solid.
Match the following.
| Srl. no. | A | B | C |
| i | Separation of visible undesirable components | Water mixed with chalk powder | Magnetic Separation |
| ii | Separation of heavier and lighter components | Sand and water | Decantation |
| iii | Separation of insoluble impurities | Iron impurities | Filtration |
| iv | Separation of magnetic components from non-magnetic components | Rice and stone | Hand-picking |
| v | Separation of solids from liquids | Husk and paddy | Winnowing |
______ has definite shape and volume.
______ particles are tightly packed into a definite shape.
