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प्रश्न
Which of the following is a mixture ?
Salt, Air, Water, Alum, Sugar
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उत्तर
Among the given options, air is a mixture as it is composed of different gases.
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संबंधित प्रश्न
Name two processes which provide the best evidence for the motion of particles in matter.
What is the scientific name of particles which make up mater?
What are the characteristics of matter?
Name one element, one compound and one mixture.
State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.
Which of the following statements are true for pure substances ?
- pure substances contain only one kind of particles
- pure substances may be compounds or mixtures
- pure substances have the same composition throughout
- pure substances can be exemplified by all elements other than nickel
Define solute.
Explain what happens when a beam of light is passed through a colloidal solution.
One of the following is a solid foam. This one is :
Which of the following is not an emulsion ?
Which of the following can be called a suspension ?
Write a method to separate a mixture of sand and potash alum.
How will you separate camphor, common salt and iron nails from their mixture ?
Which of the following mixture cannot be separated by using water as the solvent ?
The dyes present in fountain pen ink can be separated by the technique of :
Define the term matter.
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 |
Liquids have ______.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Define the term matter.
