Advertisements
Advertisements
प्रश्न
Fill in the blank
Liquids have a definite ______
Advertisements
उत्तर
Liquids have a definite Volume.
APPEARS IN
संबंधित प्रश्न
Define matter.
Describe in your own words, what happens to the particles when salt dissolves in water.
Bromine and air take about 15 minutes to diffuse completely but bromine diffuses into a vacuum very rapidly. Why is this so?
What is meant by saying that metals are malleable and ductile?
Fill in the following blanks with suitable words :
The elements which are sonorous are called ..........................
Which one of the following is not a metalloid ?
State whether colloidal solutions are homogeneous or heterogeneous.
9.72 g of potassium chloride dissolves in 30 g of water at 70°C. Calculate the solubility of potassium chloride at that temperature.
Which of the following represents the solubility of sugar in water at 20°C ?
Tincture of iodine has antiseptic properties. This solution is made by dissolving :
How will you separate a mixture containing sand and sugar ?
Explain how, impure copper sulphate can be purified by crystallisation.
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 ?
Which of the following cannot be separated from air by the process of fractional distillation ?
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 ?
Explain the meaning of the term matter with special reference to the term ‘substance’.
Stars including Sun are covered in ______.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which exists as a liquid at room temperature.
Boiling refers to the process by which a substance changes from the liquid to the gaseous state at its ______ point.
Gas-solid is ______.
