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प्रश्न
What are the characteristics of matter?
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उत्तर
The characteristics of matter are:
(i) Matter is made up of tiny particles.
(ii) The particles of matter attract each other.
(iii) The particles of matter have spaces between them.
(iv) The particles of matter are constantly moving.
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संबंधित प्रश्न
Define the term matter. What is it composed of?
Name the processes involved in two cases.
Fill in the blank
All matter is made up of tiny particles called ______
Which one is a kind of matter:
Name two solid, two liquid and two gaseous elements at the room temperature.
Name a non-metal :
- which is lustrous
- which is required for combustion
- whose one of the allotrophic forms is a good conductor of electricity. Name the allotrope.
- other than carbon which shows allotropy
- which is known to form the largest number of compounds
Classify the following into elements, compounds and mixtures :
arble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, Sea-water, Chalk
In what respects does a true solution differ from a colloidal solution ?
Define the emulsion. Give one example.
21.5 g of sodium chloride dissolves in 60 g of water at 25°C. Calculate the solubility of sodium chloride in water at that temperature.
Which one of the following is not a chemical change ?
Name the property of one of the constituents which can be used to separate a mixture of salt and iodine
Name the process by which all the dye can be recovered from black ink.
Write a method to separate a mixture of sand and potash alum.
How would you obtain sodium chloride from a mixture of sodium chloride and sulphur without using water ?
The boiling point of liquid argon is :
Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.
Compressibility of solids: ______.
Evaporation is always accompanied by ______ in temperature.
Define the term matter.
