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प्रश्न
State the property of the following substance.
Sodium nitrate is soluble in water, but calcium carbonate is not.
पर्याय
Physical
Chemical
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उत्तर
Physical
संबंधित प्रश्न
Give reasons
Liquids and gases flow but solids do not?
Give reasons
A red ink drop added to small amount of water in a glass turns the water red in some time.
To identify materials of common use
Procedure – Just move around in your house – in the drawing room, sitting room, bedroom, kitchen, bathroom etc. Identify the things and All in the blanks in the table given below
| No. | Place | Name of the thing | Material used for making the thing |
| 1 | Study room | ||
| 2 | Drawing room | ||
| 3 | Kitchen | ||
| 4 | bathroom | ||
| 5 | Any other place |
The three main states of matter are solids, liquids, and gases. Compare the three states with reference to the following characteristics of matter
(a) volume
(b) shape
(c) compressibility
(d) diffusion.
______ soil is suitable for growing cotton.
Particles in solids are free to move.
Complete the given analogy.
Large Inter-particle space: Gas:: ______ :solid.
Complete the given analogy.
Solid: Definite shape:: ______: Shape of the vessel.
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 |
Intermolecular forces of attractions are maximum in ______.
