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प्रश्न
All kinds of matter
पर्याय
occupy space and have definite mass
have mass and definite shape
can change their states
have definite volume
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उत्तर
occupy space and have definite mass
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संबंधित प्रश्न
The smallest unit of matter that exists freely in nature is called ...........
Fill in the blank
All matter is made up of tiny particles called ______
Classify the following into elements, compounds and mixtures:
- Sodium
- Soil
- Sugar solution
- Silver
- Calcium carbonate
- Tin
- Silicon
- Coal
- Air
- Soap
- Methane
- Carbon dioxide
- Blood
Out of solids, liquids and gases, which one has :
- maximum movement of particles ?
- maximum interparticle attractions ?
- minimum spaces between particles ?
What are the characteristics of matter?
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 general name of the materials which contain at least two pure substances and show the properties
of their constituents ?
What is the other name for impure substances ? Give two examples of impure substances.
Explain why, hydrogen and oxygen are considered elements whereas water is not considered an element.
Name a metal which has no fixed shape.
Define Foam Give one example.
Define solubility of a substance. How does it vary with temperature ?
What is the general name of the process by which tea-leaves are separated from prepared tea ?
Describe a method to separate a mixture of camphor and sand.
Draw a labelled diagram of the fractional distillation apparatus used for separating a mixture of alcohol and water.
Explain how, nitrogen , oxygen and argon gases are separated from air.
The correct increasing order of the boiling points of liquid oxygen, liquid argon and liquid nitrogen present in liquid air is :
You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?
Define the term matter.
