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प्रश्न
You have been given a suspension and a solution. How could you tell the difference between them by their appearance ?
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उत्तर
Both the given solutions will be kept stationary in different beakers for some time. The beaker in which the dissolved particles settle down after some time is a suspension and another one is a solution.
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संबंधित प्रश्न
The smallest unit of matter that exists freely in nature is called ...........
Name a non-metal which is a good conductor of electricity.
Which type of elements, metals or non-metals, show the property of brittleness ?
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
Which of the following is not an element ?
Out of a colloid, solution and a suspension :
which one has the smallest particles ?
Define solvent.
One of the following does not show Tyndall effect. This one is :
What is the difference between colloids and suspensions ?
Name the process which can be used to purify an impure sample of copper sulphate.
How is water purified on a large scale at water works ? Explain with the help of a labelled diagram. Name the substance which is added to kill germs in the drinking water supply ?
Which of the following cannot be separated from air by the process of fractional distillation ?
The given mixture contains three constituents A, B and C. The constituent A is a yellow coloured, solid element which dissolves in a liquid D. The constituent B is a blue coloured salt which is insoluble in liquid D but dissolves easily in another liquid E. The constitudent C is a liquid which is used in cooking food and forms a solid fat on hydrogenation.
(a) What do you think could (i) constituent A, and (ii) liquid D be ?
(b) What could (i) constituent B, and (ii) liquid E be ?
(c) What could liquid C be ?
(d) How will you separate the mixture containing A, B and C ?
Justify your answer.
| Figure 1 | Figure 2 | Figure 3 |
 |
 |
 |
The arrangement of particles in three different phases of matter is shown above.
- Which state is represented by Fig. 1?
- In which state will the inter-particle attraction be maximum?
- Which one of them cannot be contained in an open vessel?
- Which one can take the shape of its container?
Complete the following table:
| S.No. | CELSIUS | KELVIN |
| 1. | 90°C | 363 K |
| 2. | ______ | 283 K |
| 3. | 63 °C | ______ |
| 4. | 250°C | ______ |
| 5. | ______ | 303 K |
Evaporation does form bubbles.
Gases do not diffuse very easily.
Define the term matter.
