Advertisements
Advertisements
प्रश्न
Which of the following can be separated by using a separating funnel and which cannot be separated by using a separating funnel ?
- water and kerosene mixture
- water and acetone mixture
Give reasons for your answer.
उत्तर
Water and kerosene mixture can be separated by using a separating funnel because these two are immiscible liquids and differ in their densities. Kerosene is less dense than water and water comes out first from the separating funnel.
On the other hand, acetone and water mixture cannot be separated by using a separating funnel because they are miscible liquids. They are rather separated by fractional distillation.
APPEARS IN
संबंधित प्रश्न
Three mixtures A, B and C are obtained by stirring three different solids in water taken in separate beakers. When mixture A is allowed to stand for some time, then its particles settle at the bottom of the beaker. When a beam of light is passed through mixture A in a dark room, the path of light becomes visible when observed from the side of the beaker. When mixture B is allowed to stand for a considerable time, even then its particles do not settle down. Mixture B, however, scatters the beam of light just like mixture A. The particles of mixture C do not settle down on keeping and it also does not scatter a beam of light passing through it.
What are the mixtures like A known as ?
What are the mixtures like B known as ?
What are the mixtures like C known as ?
Name the phenomenon exhibited by A and B which occurs on passing a beam of light through them.
Name one mixture each which is like (i) A (ii) B, and (iii) C.
Name the process you would use to separate a mixture of two miscible liquids (like acetone and water).
Name any two solid substances whose mixture can be separated by sublimation.
How will you separate a mixture of iron fillings and sulphur powder without using carbon disulphide ?
Give two examples of the following type of mixture.
solid-solid
Fill in the blanks
The substances that make a mixture are called its ______or_________.
Tick (√) the correct alternative from the choice given for the following statement:
A gas dissolved in a liquid can be separated by
State whether the following statement is true or false. If false write – the correct statement.
Heterogeneous mixtures have different composition and properties throughout the mixture.
Name the following:
A physical method of separating iron from an iron-sulfur mixture.
Suggest separation technique(s) one would need to employ to separate the following mixture.
Kerosene oil, water and salt
