Advertisements
Advertisements
प्रश्न
What is the difference between colloids and suspensions ?
Advertisements
उत्तर
| Property | Colloid | Suspension |
| Size of particle | 1 nm − 100 nm (in diameter) | Larger than 100 nm (in diameter) |
| Separation | It can be separated by centrifugation process. | It can be separated by filtration process. |
| Tyndall effect | It shows Tyndall effect. | It does not show Tyndall effect. |
APPEARS IN
संबंधित प्रश्न
Name the terms for the change of vapour into a liquid.
What are molecules ?
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?
What is the other name for impure substances ? Give two examples of impure substances.
“Is malleable and ductile” best describes :
Choose the correct answer.
A 5 per cent sugar solution means that :
How will you test whether a given solution is a colloidal solution ?
Which of the following is not an emulsion ?
One of the following liquids will leave behind a residue on heating. This one is :
Name the process by which the various gases of the air are separated.
Name the process which can be used to recover salt from an aqueous salt solution.
Describe a method to separate a mixture of camphor and sand.
Naphthalene can be separated from sand :
Explain the meaning of the term matter with special reference to the term ‘substance’.
Asmita went to buy an earthen pot. There she saw many things kept for sale.
How did she identify what she needed?
Rusting of an article made up of iron is called
Give some examples of the Tyndall effect observed in your surroundings?
Celsius scale is a scale of temperature in which zero represents the melting point of ice and 100 represents the boiling point of water.
Intermolecular space is maximum in ______.
Solids do not flow.
