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प्रश्न
How will you separate common salt, sand and iron filings from their mixture ?
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उत्तर
We will separate common salt, sand and iron filings from their mixture by using a magnet, filtration and evaporation.
First, a magnet is moved over a mixture of iron filings, sand and common salt. In the process, iron filings are separated by the magnet. After that, sand and common salt are mixed in water. While salt dissolves in water, sand does not. So, sand is separated by filtration. On heating the filtrate, all the water evaporates from the mixture and salt crystals are left behind.
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संबंधित प्रश्न
Classify the following materials as homogeneous mixtures and heterogeneous mixtures :
Soda-water, Wood, Air, Soil, Vinegar, Alcohol and water mixture, Petrol and water mixture, Chalk and water mixture, Sugar and water mixture, Copper sulphate solution.
Fill in the blanks
_____or ___________ is a process to separate solids dissolved in liquids.
Fill in the blanks
___________is a process to obtain a very pure form of a solid dissolved in a liquid.
Tick (√) the correct alternative from the choice given for the following statement:
A set of the mixture is
Tick (√) the correct alternative from the choice given for the following statement:
Copper is not a part of the alloy
Name the following:
The component of a naphthalene-sodium chloride mixture, which remains in the evaporating dish when heated together, covered with a funnel.
Select the correct answer from the choice in the bracket.
A homogenous mixture.
How is a mixture of common salt, oil and water separated? You can use a combination of different methods.
What would you observe when
a mixture of iron filings and sulphur powder is heated strongly
Tabulate Differences between mixtures and compounds.
