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प्रश्न
Out of a colloid, solution and a suspension :
which one has the smallest particles ?
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उत्तर
Solution has the smallest particles.
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संबंधित प्रश्न
Match the following
| Column A | Column B | ||
| (a) | Molecules | (i) | Water boils |
| (b) | 100° C | (ii) | Evaporation |
| (c) | 0° C | (iii) | Changes from solid to gas |
| (d) | At all temperatures | (iv) | Matter |
| (e) | Camphor | (v) | Water freezes |
The inter-molecular space is maximum in
Gases have definite volume but no definite shape.
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
When extremely small particles X derived from the anther of a flower were suspended in a liquid Y and observed through a microscope, it was found that the particles X were moving throughout the liquid Y in a very zig-zag way. It was also observed that warmer the liquid Y, faster the particles X moved on its surface.
- What could particles X be ?
- What do you think liquid Y is ?
- What is the zig-zag movement of X known as ?
- What is causing the zig-zag movement of particles X ?
- Name the scientist who discovered this phenomenon.
- What does this experiment tell us about the nature of liquid Y?
Fill in the following blanks with suitable words :
The elements which are sonorous are called ..........................
What are the two types of pure substances? Give one example of each type.
Name the process by which common salt is obtained from sea-water.
Which technique is used in a washing machine to squeeze out water from wet clothes while drying ?
How would you obtain sodium chloride from a mixture of sodium chloride and sulphur without using water ?
Pure copper sulphate can be obtained from an impure sample by the process of :
The best way to recover sugar from an aqueous sugar solution is :
Rusting of an article made up of iron is called
The most reactive metal is ______.
In Aerosol the dispersed phase is liquid and the dispersion medium is gas.
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 |
______ is used for industrial refrigeration and transporting frozen food.
Define the term matter.
Define the term matter.
Define the term matter.
