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प्रश्न
Fill the following chart showing twelve solids, twelve liquids, four gases and eight materials.
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उत्तर
| Solids | Liquids | Gases | Materials | |
| 1 | Mobile | Ink | Oxygen | Paper |
| 2 | Pen | Water | Hydrogen | Wood |
| 3 | Pair of Shoes | Cooking oil | Nitrogen | Iron nails |
| 4 | TV set | Hair oil | Carbon dioxide | Cement |
| 5 | Chair | Lemon juice | Tiles | |
| 6 | Telephone | Cough syrup | Plaster of paris | |
| 7 | Remote control | Mercury | sand | |
| 8 | Wood | Thinner | Iron rods | |
| 9 | Ornaments | Spirit | Bricks | |
| 10 | Scissors | Kerosene | ||
| 11 | Eraser | Petrol | ||
| 12 | Mirror | Mouth wash |
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संबंधित प्रश्न
"A substance has a definite shape as well as a definite volume." Which physical state is represented by this statement?
Give one example of the diffusion of a solid in another solid.
Arrange the following substances in increasing order of force of attraction between their particles (keeping the substance having the minimum force of attraction first) : Water, Sugar, Oxygen
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly but do not leave the surface
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.
Complete the given analogy.
Solid: Rigidity:: Gas: ______
Identify the state of matter based on the arrangement of the molecules.
______ has definite shape and volume.
How the matter is grouped on the basis of physical states?
A strong current of trivalent gaseous boron passed through a silicon crystal decreases the density of the crystal due to part replacement of silicon by boron and due to interstitial vacancies created by missing Si atoms. In one such experiment, one gram of silicon is taken and the boron atoms are found to be 1000 ppm by weight, when the density of the Si crystal decreases by 12%. The percentage of missing vacancies due to silicon, which are filled up by boron atoms will be ____ g. [Given · Atomic wt. Si= 30, B = 11]
