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प्रश्न
Fill in the following blank with suitable words :
The best evidence that the particles of matter are constantly moving comes from the studies of ................. and ...................
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उत्तर
The best evidence of the particles of matter are constantly moving comes from the studies of diffusion and Brownian motion.
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संबंधित प्रश्न
Fill in the blank
All matter is made up of tiny particles called ______
What is meant by saying that non-metals are brittle ?
What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?
Fill in the following blanks with suitable words :
An element is made up of only one kind of ........
Classify the following into metals, non-metals and metalloids:
Silicon, Mercury, Diamond, Sulphur, Iodine, Germanium, Sodium, Carbon, Magnesium, Copper, Boron, Helium
Which of the following is not an element ?
“Is malleable and ductile” best describes :
In what respects does a true solution differ from a colloidal solution ?
Explain what happens when a beam of light is passed through a colloidal solution.
Define Sol and give one example.
How will you separate a mixture of common salt, sulphur powder and sand ?
How is water purified on a large scale at water works ? Explain with the help of a labelled diagram. Name the substance which is added to kill germs in the drinking water supply ?
The best way to recover sugar from an aqueous sugar solution is :
Explain the meaning of the term matter with special reference to the term ‘substance’.
What's the solution?
We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.
Seema visited a Natural Gas Compressing Unit and found that the gas can be liquefied under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions
You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster?
Celsius scale is a scale of temperature in which zero represents the melting point of ice and 100 represents the boiling point of water.
Define the term matter.
