Advertisements
Advertisements
प्रश्न
How will you separate a mixture of kerosene oil and water ? Explain with the help of a labelled diagram.
Advertisements
उत्तर
We will separate a mixture of kerosene oil and water using a separating funnel. Kerosene and water are immiscible liquids. They have difference in their densities. Kerosene has lower density, .e., it is lighter than water. So, it will form the upper layer and water will form the lower layer. On opening the stop-cock, the lower layer of water comes out first and is collected in a beaker. Kerosene is left behind in the separating funnel.
APPEARS IN
संबंधित प्रश्न
‘‘The properties of the product are different from those of the constituents''. State whether this statement best describes an element, a compound or a mixture.
State three reasons why you think air is a mixture and water is a compound.
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.
How will you separate common salt, sand and iron filings from their mixture ?
A mixture of milk and groundnut oil can be separated by :
Name the following:
A physical method of separating iron from an iron-sulfur mixture.
Give a reason for the following statement:
Gunpowder is an example of a heterogenous mixture.
Give an example for mixture and justify your answer with reason.
Air is a mixture. Justify.
Sucrose (sugar) crystals obtained from sugarcane and beetroot are mixed together. Will it be a pure substance or a mixture? Give reasons for the same.
