Class 12 Exam > Class 12 Questions > Comprehension TypeThis section contains a pas...
Start Learning for Free
Comprehension Type
This section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).
Passage
Most of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.
Q.
Which of the following is not related to ore concentration?
- a)Levigation
- b)Smelting
- c)Zone refining
- d)Electrolysis
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Comprehension TypeThis section contains a passage describing theory, e...
The process by which lighter earthly particles are free from the heavier ore particles by washing with water is called levigation.
Most Upvoted Answer
Comprehension TypeThis section contains a passage describing theory, e...
Answer:
The correct answer is option 'A': Levigation is not related to ore concentration.
Explanation:
1. Ore Concentration:
Ore concentration is the process of separating the valuable minerals from the gangue (impurities) present in the ores. It is done to obtain a higher concentration of the desired mineral in the ore for further processing.
2. Techniques of Ore Concentration:
There are various techniques used for ore concentration, some of which include:
- Levigation: Levigation is the process of separating lighter particles from heavier particles using water or any other liquid as a medium. This technique is used for the concentration of heavy oxide ores like cassiterite (tin ore).
- Smelting: Smelting is the process of extracting metals from their ores by heating them at high temperatures in a furnace. It involves the use of heat and a reducing agent to remove impurities and obtain the pure metal.
- Zone Refining: Zone refining is a technique used to purify semiconductor materials by passing a molten zone through the material. It is used to obtain highly pure metals like silicon and germanium.
- Electrolysis: Electrolysis is a process in which an electric current is passed through a solution (electrolyte) containing ions. It is used for the extraction of highly reactive metals like sodium and aluminum.
3. Levigation not related to Ore Concentration:
Levigation is a technique used for the concentration of heavy oxide ores. It involves the separation of lighter particles from heavier particles using a liquid medium. However, it is not a common technique used for ore concentration compared to other methods like froth flotation, magnetic separation, and gravity separation. Therefore, levigation is not directly related to ore concentration.
In conclusion, levigation is not related to ore concentration. It is a specific technique used for the concentration of heavy oxide ores, but it is not commonly used compared to other methods.
The correct answer is option 'A': Levigation is not related to ore concentration.
Explanation:
1. Ore Concentration:
Ore concentration is the process of separating the valuable minerals from the gangue (impurities) present in the ores. It is done to obtain a higher concentration of the desired mineral in the ore for further processing.
2. Techniques of Ore Concentration:
There are various techniques used for ore concentration, some of which include:
- Levigation: Levigation is the process of separating lighter particles from heavier particles using water or any other liquid as a medium. This technique is used for the concentration of heavy oxide ores like cassiterite (tin ore).
- Smelting: Smelting is the process of extracting metals from their ores by heating them at high temperatures in a furnace. It involves the use of heat and a reducing agent to remove impurities and obtain the pure metal.
- Zone Refining: Zone refining is a technique used to purify semiconductor materials by passing a molten zone through the material. It is used to obtain highly pure metals like silicon and germanium.
- Electrolysis: Electrolysis is a process in which an electric current is passed through a solution (electrolyte) containing ions. It is used for the extraction of highly reactive metals like sodium and aluminum.
3. Levigation not related to Ore Concentration:
Levigation is a technique used for the concentration of heavy oxide ores. It involves the separation of lighter particles from heavier particles using a liquid medium. However, it is not a common technique used for ore concentration compared to other methods like froth flotation, magnetic separation, and gravity separation. Therefore, levigation is not directly related to ore concentration.
In conclusion, levigation is not related to ore concentration. It is a specific technique used for the concentration of heavy oxide ores, but it is not commonly used compared to other methods.
|
Explore Courses for Class 12 exam
|
|
Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer?
Question Description
Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer?.
Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d).PassageMost of the ores available in nature contain large amount of impurities i.e. gangue. The pretreatment of ores, based on physical properties and without bringing out any major chemical change in the ore is called ore dressing or ore concentration.Q.Which of the following is not related to ore concentration?a)Levigationb)Smeltingc)Zone refiningd)ElectrolysisCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 12 tests.
|
|
Explore Courses for Class 12 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup