Advertisements
Advertisements
प्रश्न
Name the process you would use to separate a mixture of water and alcohol.
Advertisements
उत्तर
We would use the process of distillation to separate a mixture of water and alcohol.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
All matter is made up of tiny particles called ______
What is the scientific name of particles which make up mater?
Out of solids, liquids and gases, which one has :
- maximum movement of particles ?
- maximum interparticle attractions ?
- minimum spaces between particles ?
Honey is more viscous than water. Can you suggest why?
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 are the two types of pure substances? Give one example of each type.
Which of the following are ‘pure substances’ ?
Ice, Milk, Iron, Hydrochloric acid, Calcium oxide, Mercury, Brick, Wood, Air
How would you confirm that a colourless liquid given to your is pure water ?
Which of the following does not have a fixed melting point/boiling point ?
State whether colloidal solutions are homogeneous or heterogeneous.
What is meant by the concentration of a solution ?
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.
9.72 g of potassium chloride dissolves in 30 g of water at 70°C. Calculate the solubility of potassium chloride at that temperature.
Name the property of one of the constituents which can be used to separate a mixture of salt and iodine
Which technique is used in a washing machine to squeeze out water from wet clothes while drying ?
The dyes present in fountain pen ink can be separated by the technique of :
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 ?
Solids possess very high kinetic energy.
Which statement is not correct for a mixture
