Advertisements
Advertisements
प्रश्न
The molecules can move freely anywhere in
विकल्प
gases
liquids
solids
none of the above
Advertisements
उत्तर
gases
APPEARS IN
संबंधित प्रश्न
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 ?
Tincture of iodine is a mixture of two materials X and Y. The material Y has a property that its solid form can be converted directly into vapours on heating by a process called Z.
- What could X be ?
- What could Y be ?
- Name the process Z.
- Which process would you use to recover both the components X and Y from tincture of iodine ?
- Which process can be used to recover only component Y from tincture of iodine ?
Select the correct answer from A, B, C, D & E for the statement given below:
An atom or group of atoms _________ having a resultant charge.
Matter is made up of ______.
The property which allows the metals to be hammered into their sheets is ______.
The most reactive metal is ______.
Atoms or groups of atoms having a charge are called ______.
The phenomenon of Evaporation takes place at the ______ of a liquid.
Define the term matter.
