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प्रश्न
Fill in the following blanks with suitable words :
An element is made up of only one kind of ........
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उत्तर
An element is made up of only one kind of atoms.
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संबंधित प्रश्न
Define the following term of Atom .
Write true or false for each statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
What are the conditions for 'something' to be called 'matter'?
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 ...................
What are the two types of pure substances? Give one example of each type.
Which of the following are not compounds ?
Chlorine gas, Potassium chloride, Iron powder, Iron sulphide, Aluminium foil, Iodine vapour, Graphite, Carbon monoxide, Sulphur powder, Diamond
Out of a colloid, solution and a suspension :
which one has the smallest particles ?
What is the most common way of expressing the concentration of a solution ?
Fill in the following blank :
A colloid is a ..............mixture and its components can be separated by the technique known as ...............
What is meant by a solution?
How would you prepare a saturated solution of sodium chloride in water at 25°C ? What will happen if this solution is cooled to 10°C ?
How will you separate camphor, common salt and iron nails from their mixture ?
How will you separate a mixture of iron filings, chalk powder and common salt ?
A solid mixture contains four constituents P, Q, R and S. P consists of tiny grains and it is mixed with
cement for plastering the walls. Q is a white solid which is recovered on a large scale from sea water by the
process of evaporation. R is in the form of tiny particles of a material whose corrosion is called rusting. And
S is a white solid which is used in making ordinary dry cells.
- What could P, Q, R and S be ?
- How would you separate a mixture containing P, Q, R and S ?
What's the solution?
We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.
______ is a smallest particle.
Stars including Sun are covered in ______.
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.
The movement of particles in liquids is ______.
