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प्रश्न
Give reasons:
A wooden table should be called a solid.
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उत्तर
- A wooden table has a definite shape and volume.
- It is very rigid and cannot be compressed, so it has the characteristics of a solid. Hence, it should be called a solid.
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संबंधित प्रश्न
Explain the term ‘Interconversion of matter’. With reference to ice, water, and water vapour show diagrammatically the change of state of matter from solid to liquid to gaseous and back to the original state.
State the property of the following substance.
Magnesium reacts with dilute hydrochloric acid, liberating hydrogen gas.
State the property of the following substance.
Manganese dioxide, a catalyst which alters the rate of a chemical reaction is black in colour.
See the given pictures and write down the state of each object. (Solid, Liquid, Gas)
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 |
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| _____ | ______ | ______ | ______ | ______ |
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 |
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| ______ | _______ | ______ | ______ | ______ |
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 |
Solids are compressible.
Intermolecular forces of attractions are maximum in ______.
Gases have neither a definite shape nor a definite volume.
Define the term ‘Diffusion’.
The density of solid Argon is 1.6 ml at - 233°C. If the Argon atom is assumed to be sphere of radius 1.5 × 10-8 cm, then the ______ % of solid Argon is apparently occupied.
[Take : NA = 6 × 1023, Atomic mass of Ar = 40]
