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प्रश्न
What is the scientific name of particles which make up mater?
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उत्तर
Atoms or molecules are the scientific names of particles that make up matter.
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संबंधित प्रश्न
The inter-molecular force is maximum in
The molecules can move freely anywhere in
Select the correct alternative
The molecules can move freely anywhere in
- gases
- liquids
- solids
- none of the above
Differentiate between an atom and a molecule.
Fill in the blank :
The substances which can flow are called ________
Explain why steel is used to make railway lines.
What is Brownian motion? Draw a diagram to show the movement of a particle (like a pollen grain during Brownian motion.
Which of the following is a mixture ?
Salt, Air, Water, Alum, Sugar
What are the two types of pure substances? Give one example of each type.
Which one of the following is not a metalloid ?
The elements which normally exist in the liquid state are :
The property/properties which enable copper metal to be used for making electric wires is/are :
What is the most common way of expressing the concentration of a solution ?
What is the concentration of a solution which contains 16 g of urea in 120 g of solution ?
Classify the following into true solutions and colloidal solutions:
Ink, Salt solution, Starch solution, Blood, Sugar solution
Define Aerosol Give one example.
What is fractional distillation ? What is the use of fractionating column in fractional distillation ?
Which among the following is not a matter?
Solids possess very high kinetic energy.
