Advertisements
Advertisements
प्रश्न
The inter-molecular space is maximum in
पर्याय
liquids
solids
gases
none of the above
Advertisements
उत्तर
gases
APPEARS IN
संबंधित प्रश्न
Name the processes involved in two cases.
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
Name a liquid which can be classified as a pure substance and conducts electricity.
Fill in the following blank :
A colloid is a ..............mixture and its components can be separated by the technique known as ...............
When the solid A is added to water, it dissolves with the evolution of a lot of heat and making little explosions to form two products B and C. The properties of products B and C are entirely different from those of solid A as well as water. Moreover, products B and C cannot be reconverted into solid A and water. When another solid D is added to water, it dissolves with the absorption of a little heat to form a product E which cools down. The product E shows the properties of both, solid D as well as water. Moreover, product E can be converted into solid D and water.
(a) What type of change occurs when solid A is dissolved in water ? Why ?
(b) What type of change occurs when solid D is dissolved in water ? Why ?
(c) Name a metal which you think could behave like solid A. Also name the products B and C.
(d) Name the solid D if it is the one which is used in making ordinary dry cells.
(e) Name the process by which D can be recovered from E.
Name the process by which common salt is obtained from sea-water.
Fill in the following blanks with suitable words :
A heterogeneous mixture of liquid and solid is conveniently separated by...............
Describe a method to separate a mixture of camphor and sand.
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).
The best way to recover sugar from an aqueous sugar solution is :
