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To separate a mixture of iron filings, sulphur powder and iron sulphide, which sequence of methods should be used?
- a)Magnet, dissolve in CS2, filter, evaporation.
- b)Magnet, dissolve in water, filter, evaporation.
- c)Dissolve in water, filter, crystallize, decant.
- d)Magnet, filter, decant, crystallize.
Correct answer is option 'A'. Can you explain this answer?
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To separate a mixture of iron filings, sulphur powder and iron sulphi...
Electrical and Magnetic separation: Electrolytes and non-electrolytes, magnetic and non-magnetic substances can be separated by this separation technique using either electrical field or magnetic field. The magnet can be used to separate iron from sulphur.
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To separate a mixture of iron filings, sulphur powder and iron sulphi...
Separating a Mixture of Iron Filings, Sulphur Powder, and Iron Sulphide
In order to separate a mixture of iron filings, sulphur powder, and iron sulphide, we need to utilize a sequence of methods that take advantage of the unique properties of these substances. The correct sequence of methods to achieve this separation is:
Magnet
- The first step is to use a magnet to separate the iron filings from the mixture.
- Iron filings are magnetic, so they can be easily attracted and separated using a magnet.
- The magnet will attract the iron filings, leaving behind the sulphur powder and iron sulphide.
Dissolve in CS2
- The next step is to dissolve the remaining mixture in carbon disulphide (CS2).
- Sulphur is soluble in carbon disulphide, whereas iron sulphide is not.
- This step allows us to separate the sulphur powder from the iron sulphide.
Filter
- After dissolving the mixture in CS2, we need to filter the solution.
- The solution will pass through the filter, while the undissolved iron sulphide will be retained on the filter paper.
- This step helps in separating the iron sulphide from the solution.
Evaporation
- The final step is to evaporate the CS2 solution.
- Carbon disulphide has a low boiling point, so it can be easily evaporated.
- As the CS2 evaporates, it leaves behind the pure sulphur powder.
Therefore, the correct sequence of methods to separate the mixture of iron filings, sulphur powder, and iron sulphide is magnetization, dissolution in CS2, filtration, and evaporation. This sequence takes advantage of the magnetic properties of iron filings, the solubility of sulphur in CS2, and the different solubilities of iron sulphide and sulphur in CS2 to achieve the desired separation.
In order to separate a mixture of iron filings, sulphur powder, and iron sulphide, we need to utilize a sequence of methods that take advantage of the unique properties of these substances. The correct sequence of methods to achieve this separation is:
Magnet
- The first step is to use a magnet to separate the iron filings from the mixture.
- Iron filings are magnetic, so they can be easily attracted and separated using a magnet.
- The magnet will attract the iron filings, leaving behind the sulphur powder and iron sulphide.
Dissolve in CS2
- The next step is to dissolve the remaining mixture in carbon disulphide (CS2).
- Sulphur is soluble in carbon disulphide, whereas iron sulphide is not.
- This step allows us to separate the sulphur powder from the iron sulphide.
Filter
- After dissolving the mixture in CS2, we need to filter the solution.
- The solution will pass through the filter, while the undissolved iron sulphide will be retained on the filter paper.
- This step helps in separating the iron sulphide from the solution.
Evaporation
- The final step is to evaporate the CS2 solution.
- Carbon disulphide has a low boiling point, so it can be easily evaporated.
- As the CS2 evaporates, it leaves behind the pure sulphur powder.
Therefore, the correct sequence of methods to separate the mixture of iron filings, sulphur powder, and iron sulphide is magnetization, dissolution in CS2, filtration, and evaporation. This sequence takes advantage of the magnetic properties of iron filings, the solubility of sulphur in CS2, and the different solubilities of iron sulphide and sulphur in CS2 to achieve the desired separation.
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To separate a mixture of iron filings, sulphur powder and iron sulphide, which sequence of methods should be used?a)Magnet, dissolve in CS2, filter, evaporation.b)Magnet, dissolve in water, filter, evaporation.c)Dissolve in water, filter, crystallize, decant.d)Magnet, filter, decant, crystallize.Correct answer is option 'A'. Can you explain this answer?
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To separate a mixture of iron filings, sulphur powder and iron sulphide, which sequence of methods should be used?a)Magnet, dissolve in CS2, filter, evaporation.b)Magnet, dissolve in water, filter, evaporation.c)Dissolve in water, filter, crystallize, decant.d)Magnet, filter, decant, crystallize.Correct answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about To separate a mixture of iron filings, sulphur powder and iron sulphide, which sequence of methods should be used?a)Magnet, dissolve in CS2, filter, evaporation.b)Magnet, dissolve in water, filter, evaporation.c)Dissolve in water, filter, crystallize, decant.d)Magnet, filter, decant, crystallize.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for To separate a mixture of iron filings, sulphur powder and iron sulphide, which sequence of methods should be used?a)Magnet, dissolve in CS2, filter, evaporation.b)Magnet, dissolve in water, filter, evaporation.c)Dissolve in water, filter, crystallize, decant.d)Magnet, filter, decant, crystallize.Correct answer is option 'A'. Can you explain this answer?.
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