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Direction: Read the following and answer any four questions from (i) to (v).
Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.
Q. Which technique can be used to separate salt from sea water?
- a)Filtration
- b)Sublimation
- c)Distillation
- d)Crystallisation
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Direction: Read the following and answer any four questions from (i) ...
The salt present in seawater may contain impurities in dissolved form. Simple evaporation causes the water to evaporate, leaving the impurities with the salt. In crystallization pure solid is obtained in the form of crystals from a solution. So. crystallization ensures the purity of the product obtained.
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Most Upvoted Answer
Direction: Read the following and answer any four questions from (i) ...
Separating Salt from Sea Water using Crystallisation
Crystallisation is the technique that can be used to separate salt from sea water. It is a process in which a solid solute is separated from a liquid solution by cooling the solution, causing the solute to form crystals.
Process of Crystallisation:
1. Collection of Sea Water: The first step in the process is to collect sea water, which contains dissolved salt.
2. Heating: The collected sea water is then heated to evaporate the water content. This process is known as evaporation. As the water evaporates, salt crystals are left behind.
3. Cooling: After the evaporation process, the remaining solution is allowed to cool down. As the solution cools, the solubility of salt decreases, leading to the formation of salt crystals.
4. Crystallisation: The salt crystals are then separated from the remaining liquid solution by filtration or decantation. This is done by pouring the solution through a filter paper or by carefully pouring off the liquid while leaving the crystals behind.
5. Drying: Finally, the separated salt crystals are dried to remove any remaining moisture, resulting in pure salt.
Why is Crystallisation used to Separate Salt from Sea Water?
Crystallisation is used to separate salt from sea water because salt has a higher boiling point than water. When sea water is heated, the water evaporates, leaving behind the salt. By cooling the remaining solution, the salt can be obtained in the form of crystals.
Advantages of Crystallisation:
1. Purity: Crystallisation allows for the separation of pure salt from sea water, as impurities are left behind in the solution.
2. Efficiency: The process of crystallisation is relatively simple and efficient, requiring only heating, cooling, and filtration or decantation.
3. Economic: Crystallisation is a cost-effective method for obtaining salt from sea water, as it does not require complex equipment or chemicals.
4. Environmentally Friendly: The use of crystallisation to separate salt from sea water does not involve any harmful or toxic substances, making it an environmentally friendly technique.
In conclusion, crystallisation is the most suitable technique for separating salt from sea water. It is a simple, efficient, and cost-effective method that allows for the production of pure salt.
Crystallisation is the technique that can be used to separate salt from sea water. It is a process in which a solid solute is separated from a liquid solution by cooling the solution, causing the solute to form crystals.
Process of Crystallisation:
1. Collection of Sea Water: The first step in the process is to collect sea water, which contains dissolved salt.
2. Heating: The collected sea water is then heated to evaporate the water content. This process is known as evaporation. As the water evaporates, salt crystals are left behind.
3. Cooling: After the evaporation process, the remaining solution is allowed to cool down. As the solution cools, the solubility of salt decreases, leading to the formation of salt crystals.
4. Crystallisation: The salt crystals are then separated from the remaining liquid solution by filtration or decantation. This is done by pouring the solution through a filter paper or by carefully pouring off the liquid while leaving the crystals behind.
5. Drying: Finally, the separated salt crystals are dried to remove any remaining moisture, resulting in pure salt.
Why is Crystallisation used to Separate Salt from Sea Water?
Crystallisation is used to separate salt from sea water because salt has a higher boiling point than water. When sea water is heated, the water evaporates, leaving behind the salt. By cooling the remaining solution, the salt can be obtained in the form of crystals.
Advantages of Crystallisation:
1. Purity: Crystallisation allows for the separation of pure salt from sea water, as impurities are left behind in the solution.
2. Efficiency: The process of crystallisation is relatively simple and efficient, requiring only heating, cooling, and filtration or decantation.
3. Economic: Crystallisation is a cost-effective method for obtaining salt from sea water, as it does not require complex equipment or chemicals.
4. Environmentally Friendly: The use of crystallisation to separate salt from sea water does not involve any harmful or toxic substances, making it an environmentally friendly technique.
In conclusion, crystallisation is the most suitable technique for separating salt from sea water. It is a simple, efficient, and cost-effective method that allows for the production of pure salt.
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Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. Can you explain this answer?
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Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. 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 Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. 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 Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. Can you explain this answer?.
Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. 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 Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. 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 Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
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Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Direction: Read the following and answer any four questions from (i) to (v).Manish and Nitish are provided with mixture of camphor, common salt and soil by their teacher. The teacher has asked them to use the techniques of sublimation, filtration and evaporation to separate this mixture.Q. Which technique can be used to separate salt from sea water?a)Filtrationb)Sublimationc)Distillationd)CrystallisationCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 9 tests.
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