Advertisements
Advertisements
प्रश्न
Give two example of the following:
The substances which sublime.
Advertisements
उत्तर
Camphor, iodine, naphthalene, ammonium chloride, dry ice (solid carbon dioxide), etc.
APPEARS IN
संबंधित प्रश्न
Name the three states of matter and define them.
Write whether the following statement is true or false.
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely.
Write whether the following statement is true or false.
There is no difference between evaporation and boiling.
Which of the following is a property of the liquids ?
- they can flow
- they are malleable
- they have a definite shape
- they are rigid
Give reason of A gas fills up the space available to it.
Give reasons for the following:
Water on freezing turns into ice.
Each of the three states of matter has mass. Explain with the help simple experiments – that each state of matter has mass.
A measuring cylinder is filled with water to a particular mark. A piece of solid is immersed inside the measuring cylinder. State why the level of water in the measuring cylinder will rise up. If the solid is removed, what will be the new level of the water in the measuring cylinder? Give a reason for your answer.
State in which of the three states of matter:
Are the atoms or particles far apart
‘Inter-particle attraction between atoms of gases is very weak’. State five properties of gases which correlate as a consequence of the weak inter-particle attraction between particles of gases.
