Advertisements
Advertisements
प्रश्न
Define the following term of Matter .
उत्तर
Matter—Anything that has mass and occupies space is called matter.
APPEARS IN
संबंधित प्रश्न
All kinds of matter
Name two processes which provide the best evidence for the motion of particles in matter.
Name the scientist who studied the movement of pollen grains suspended in water through a microscope. What is this phenomenon known as?
What are the three groups into which all the elements can be divided ? Name two elements belonging to each group.
Give reason why copper metal is used for making electric wires.
Name a non-metal :
- which is lustrous
- which is required for combustion
- whose one of the allotrophic forms is a good conductor of electricity. Name the allotrope.
- other than carbon which shows allotropy
- which is known to form the largest number of compounds
What is the difference between solutions and colloids ?
Which of the following are chemical changes and which physical ? Give reason.
- a glass bottle breaking
- coal burning in air
- making a cake
- wool being knitted into a sweater
What difference in the properties of oil and water enable their separation by a separating funnel ?
Name the process by which common salt is obtained from sea-water.
Which technique is used in a washing machine to squeeze out water from wet clothes while drying ?
Fill in the following blanks with suitable words :
Immiscible liquids are separated by using a .....................
Fill in the following blanks with suitable words :
If a mixture contains iron filings as one of the constituents, it can be separated by using a .......................
How can you obtain pure water from a salt-water mixture (or salt-solution) ? Draw a neat and labelled diagram of the apparatus you would use to obtain pure water from a salt-water mixture (or salt-solution).
Which of the following mixture cannot be separated by using water as the solvent ?
The material which is added to water during purification process at the water works so as to disinfect it is :
There are three liquids A, B and C, all having different densities and different boiling points. Liquids A and C are organic in nature whereas liquid B is considered to be inorganic. When liquids A and B are put together in a container, they form a single layer. On the other hand, when, liquids B and C are mixed, they form two separate layers :
(a) Which process will you use to separate a mixture of A and B ?
(b) Which method will you use to separate a mixture of B and C ?
(c) Name the liquids which would behave like (i) A (ii) B and (iii) C.
Define the term matter.
Define the term matter.
